US Bridges

SR 37 over Dietzen Creek

Good

Allen County, Indiana · 03.71 N SR 101 · Structure no. 012621

Built
2022
3 years old
Condition
Good
inspected June 2024
Type
Culvert
Concrete
Length
23 ft
1 main span
Daily traffic
2,685
2021 count
Owner
State
State Highway Agency

About this bridge

SR 37 over Dietzen Creek is a concrete culvert carrying SR 37 over Dietzen Creek in Allen County, Indiana. It was built in 2022, so it is 3 years old, younger than the Indiana average of 46.6 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 2,685 vehicles a day, roughly 5% of them trucks, projected to reach 3,600 by 2041. The structure is 23 ft (7.1 m) long and 58 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSR 37
CrossesDietzen Creek
Location03.71 N SR 101
RouteState Highway 37
StateIndiana
Coordinates41.26894, -84.80888
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection9 ExcellentNo problems noted.
Culvert8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating46.4 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHL 93
Structure length23 ft (7.1 m)
Longest span21 ft (6.4 m)
Deck width58 ft (17.6 m)
Roadway width34 ft (10.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,685 (2021)
Projected traffic3,600 by 2041
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Dietzen Creek built?

It was built in 2022, making it 3 years old in 2025.

What condition is SR 37 over Dietzen Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2024.

How much traffic does SR 37 over Dietzen Creek carry?

About 2,685 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is SR 37 over Dietzen Creek?

The structure is 23 ft (7.1 m) long with a longest span of 21 ft (6.4 m) and a deck 58 ft wide.

Who owns SR 37 over Dietzen Creek?

It is owned by the State Highway Agency.