US Bridges

SR 37 over Wann Ditch

Fair

Allen County, Indiana · 00.38 S SR 101 · Structure no. 012590

Built
1954
71 years old
Condition
Fair
inspected June 2024
Type
Slab
Concrete
Length
23 ft
1 main span
Daily traffic
2,938
2021 count
Owner
State
State Highway Agency

About this bridge

SR 37 over Wann Ditch is a concrete slab carrying SR 37 over Wann Ditch in Allen County, Indiana. It was built in 1954, so it is 71 years old, older than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,938 vehicles a day, roughly 4% of them trucks, projected to reach 9,485 by 2034. The structure is 23 ft (7 m) long and 46 ft wide. If it were closed, the detour would be 2.5 mi (4 km).

Location

Open in Google Maps
CarriesSR 37
CrossesWann Ditch
Location00.38 S SR 101
RouteState Highway 37
CountyAllen County
StateIndiana
Coordinates41.22893, -84.87202
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.9 US tons
Inventory rating44.6 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 20
Structure length23 ft (7 m)
Longest span22 ft (6.6 m)
Deck width46 ft (14 m)
Roadway width44 ft (13.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,938 (2021)
Projected traffic9,485 by 2034
Trucks4%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed2.5 mi (4 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 37 over Wann Ditch built?

It was built in 1954, making it 71 years old in 2025.

What condition is SR 37 over Wann Ditch in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does SR 37 over Wann Ditch carry?

About 2,938 vehicles per day (2021 count), of which roughly 4% are trucks.

How long is SR 37 over Wann Ditch?

The structure is 23 ft (7 m) long with a longest span of 22 ft (6.6 m) and a deck 46 ft wide.

Who owns SR 37 over Wann Ditch?

It is owned by the State Highway Agency.