Today is the second of the series covering state roads in Indiana’s counties in alphabetical order. Today, I will cover, as the title states, Allen County. And, just like the last post of this series, it will be done with a lot of maps, and start with the history of the formation of the county.
The creation of Allen County happened on 17 December 1823, when the Indiana General Assembly issued the following news: “Formation by statute, effective April 1, 1824. The formation affected Randolph and Delaware counties.”
“Beginning at a point on the line dividing this state and the state of Ohio, where the township line dividing townships twenty-eight and twenty-nine north, intersects the same; thence north with said state line twenty-four miles; thence west to the line dividing ranges ten and eleven east; thence south to the line dividing townships twenty-eight and twenty-nine north, thence east to the place of beginning.” (Revised Laws of Indiana, 1823-1824, pp 109)
One month after the creation of the county, Fort Wayne was made the seat of the county’s government.

Allen County is one of those few counties that actually acquired its first modern state road with the original creation of the Indiana State Highway Commission in 1917. One of the five Main Market Roads, as they were called at first, connected Fort Wayne to near Chicago. Of course, it was built as the Lincoln Highway. That Auto-Trail would be given the number Main Market Road 2.
In 1919, Main Market Road 2 would become State Road 2. By 1920, four more state highways would be added to Allen County’s landscape: OSR 11; OSR 13; OSR 21; and OSR 44. OSR 11 would connect Fort Wayne to Huntington, ultimately ending in Greenfield at the National Road. OSR 13 would be the road from Fort Wayne to Bluffton, again ending at the National Road, this time at Lewisville. As mentioned in the Adams County entry, OSR 21 travelled from Fort Wayne, through Decatur, Portland, Winchester and Richmond to end at Liberty in Union County.

Due to location, and the fact that Fort Wayne had, for decades, been one of the largest cities in the Hoosier State, the city, and Allen County, would find itself along quite a few Auto Trails during that era. In 1923, as shown on the map to the left, the following Auto Trails crossed Allen County: Hoosier Highway [B]; Yellowstone Trail [N]; Wabash Way [O]; Ohio, Indiana, Michigan Way [S]; Lincoln Highway [X]; and the Custer Trail [BB].

The Hoosier Highway has been covered numerous times in this blog. It started in Evansville, ultimately winding its way through the entire state to Fort Wayne on the way to Detroit, Michigan. Coming from the south, it was given the designation OSR 13 to Fort Wayne, but no state highway number was assigned to it leaving Fort Wayne to the northeast.


The Yellowstone Trail and Lincoln Highway would be intertwined, even though the only place they multiplex was east of Fort Wayne. Both of them would meet again at Valparaiso. The Lincoln Highway left to the northwest of Fort Wayne, with the Yellowstone heading more west. In 1920, as mentioned above, Lincoln Highway was OSR 2, and Yellowstone Trail was OSR 44.

The Wabash Way left Fort Wayne to the southwest, winding its way through Huntington, Wabash, Peru, Logansport, Delphi, Lafayette, and Attica, crossing the Illinois State Line to end at Danville. The ISHC gave it the number OSR 11 in 1920.

The Ohio-Indiana-Michigan Way was mentioned in the Adams County entry. It was OSR 21 into Fort Wayne from the south. Leaving to the north, it wasn’t part of the state highway system. Neither was the Custer Trail, which started in Fort Wayne, leaving to the north for Auburn and Angola on a winding trail through Steuben county to enter Michigan.

In the fall of 1923, the ISHC decided to rearrange state highway numbers to make them easier to understand and follow. This led to numerous changes in Allen County. The Lincoln Highway, which had been OSR 2 for the previous six years was now OSR 46 heading northwest out of Fort Wayne. The OSR 2 label, while maintained on the Lincoln Highway east of Fort Wayne, became attached to the Yellowstone Trail west of the city. OSR 11, the Wabash Way, was changed to OSR 7. OSR 13 and 21 remained the same south of Fort Wayne, but a new addition to SR 31 was added north of the Allen County Seat. It encompassed neither the OIM or the Custer Trail. It was a “new” road, without any special designation prior to its addition to the state highway system.

Allen County became the home of quite a few United States Highways with the Great Renumbering of 1 October 1926. The 1923 version of SR 2, leaving Fort Wayne along State Boulevard and Leesburg Road, was rerouted to connect to the new SR 2, which was the route of the original Lincoln Highway, at what is now Lincoln Highway and Washington Center Road. From that connection, SR 2 continued its journey across the county to Churubusco. East of Fort Wayne, the OSR 2 that had existed since 1917 was changed to US 30.
The OSR 11 (1920)/OSR 7 (1923) was practically abandoned in Allen County. The old State Road 7 route was moved north, and would be changed to US 24. East of Fort Wayne, a new route US 24, one that had not been part of the state highway system before, was in the process of being added. It would connect to Ohio’s US 24 after leaving east-northeast from New Haven.
OSR 13 was given two designations. South of Fort Wayne, it became SR 3. North of the city, it became, along with OSR 21 south of Fort Wayne, US 27. This left Allen County with two state roads (SR 2 and SR 3) and three US highways (US 24, 27 and 30)..

With the number of additions that were made to the state highway system in 1930, the September map of that year showed many changes. Not in the way of the routes that had been established in 1926. No. The old OIM Way north out of Fort Wayne was added to the state highway system as an extension of State Road 3. The old Custer Trail route was also added, becoming the northern State Road 1. There was also an authorized addition shown on the map. It would come into Allen County from the west, travel through Fort Wayne, and leave to the northeast. The western end of that authorized addition was at State Road 15 at Silver Lake. A look at the map shows it to be an extension of State Road 14.

When it was finally added to the state highway system in 1931, that’s what it was: an extension of SR 14 across Allen County. SR 14 connected to Ohio State Road 18 at the state line. But the early 1932 map showed two more authorized additions the ISHC wanted to make. First, a road connecting to SR 1 north of Fort Wayne, heading due east to Leo, then roughly along the St. Joseph River heading northeast.
The second left SR 3 south of Fort Wayne, heading southwest through Nine Mile and Zanesville.
Other than that, still no real changes had been made to the 1926 highways that Allen County had been originally given.

Three “new” state roads were added in 1932 for the 1933 official map. First, the authorized addition through Zanesville and Nine Mile, which turned southwest off of SR 3 from Waynedale, was officially added, and given the number SR 3. The old SR 3, which had that number since the 1926 number shuffle, became the new SR 1 south of Waynedale.
But that wasn’t the only change in SR 1. The ISHC changed their minds, instead of routing a new state road due east into Leo, it was decided to use what is now Clinton Street toward what were the separate villages of Cedarville and Leo. This was given the number State Road 1. The old SR 1, that ran north along what is now Tonkel Road, was given the number State Road 427, another daughter route to US 27. Both routes connected at Auburn, with US 27 coming in from the west, and SR 427 coming in from the south.

Travelling east across Allen County, from New Haven to Edgerton, along what is now Dawkins Road, was a daughter route to US 30, State Road 230. SR 230 connected to Ohio State Road 113 at the state line.
The period between 1932 and 1936 saw very few changes. The Indiana State Highway Commission decided to authorize the building of an extension of SR 101, north and south, through eastern Allen County. At the time, SR 101 did exist in Adams County, but ended at the Adams-Allen County Line. The new SR 101 would directly connect to State Road 1 in Dekalb County at State Road 8. Although it was an authorized addition, State Road 101 was not, at least according to the maps of 1937, located. The route shown on the map was pure conjecture…and hoping. Also, SR 14 was then connected to both Ohio State Road 18, but a new Ohio State Road 2. The multiplexed route from the Ohio State Line connected to Hicksville, before Ohio 2 and Ohio 18 went separate ways.

There were two changes made in 1937, as shown on the 1938 map to the left. First was the building of SR 101 from the Adams-Allen County line to US 30. Second, US 33 came to Indiana. From Decatur, US 27 and US 33 used the same road to connect to Fort Wayne. But leaving Fort Wayne, the road that had been State Road 2 was then called US 33. This eliminated the State Road 2 designation east of South Bend. Both Lincoln Highways were now part of the US Highway System in Allen County. The original was now US 33, the replacement (marked in the mid to late 1920’s) had been marked US 30 since 1926.

1938, as shown by the 1939 Official Map, saw the completion of SR 101 through the county.

Changes made in the 1939-1940 time frame included the extension of SR 37 to Fort Wayne and beyond. SR 37 had ended at Indianapolis to this point, coming up from southern Indiana. It replaced, in Marion and Hamilton Counties, the original Indianapolis-Fort Wayne State Road, known as Allisonville Road in that area. It entered Allen County multiplexed with US 24. The designation SR 37 then replaced the SR 14 designation northeast of Fort Wayne. At the Ohio state line, it connected to only Ohio SR 2, as Ohio SR 18 was removed from that section of road in that state. But that wasn’t the end of SR 14 east of Fort Wayne. What was formerly SR 230 became the new SR 14.

1941 added another state road to Allen County. In the extreme northwest corner of the county, SR 205, which had ended at the county line, was extended as far as the Allen-Noble county line at Ari. SR 205 would eventually be extended into Dekalb County to end at what is now SR 327, but was, at the time, US 27.

Another state road was added in 1948, and showed up on maps in 1949. Connecting US 30/US 33 northwest of Fort Wayne to SR 3, US 27, SR 1 and SR 427 to end at SR 37 northeast of Fort Wayne was State Road 324. It would appear that the route of SR 324 is what is now Coliseum Boulevard.

The next change is shown on the first available map that has it. It seems that Indiana did not issue, that I can find, Official Highway maps for the years 1954 or 1955. I can not find them if they exist. I do not have any in my personal collection, nor does the state library have them in their digital collection.
There were two changes between 1953 and 1955. One was the continuation of SR 324 as a bypass to the east of Fort Wayne. That state road ended at New Haven Avenue, which was given the designation State Road 230 from SR 324 to the junction of US 30/US 24/SR 14 less than a mile east of the junction with SR 324.

The following year, 1956, saw the end of both State Road 230 and State Road 324. SR 324 was replaced with the US 30 designation. SR 230 was completely removed from Allen County.
The 1960 map, which I can not share here, shows the beginnings of Interstate 69 under construction from SR 3 in the north to US 24 in the south. (I can not share this map, as the one on the state library site has a big section missing through Steuben, Dekalb and Allen Counties. And I can not scan my personal copy since my scanner is not working properly at this time.)

I do want to share one last map, showing the state highway situation in Allen County according to the 1961 official map (meaning 1960 changes).
Interstate 69 is officially under construction at that time from US 24 in the south to the Allen-Dekalb County line. Also, a replacement for US 30 west of Fort Wayne is under construction.
Thus are the state highway changes in Allen County from 1920 (or, actually, 1917) to 1960.