US Bridges

Dettman RD over I-94

Good

Jackson County, Michigan · 0.2 MI W of E JCT US-127 · Structure no. 000000000004421

Built
2009
16 years old
Condition
Good
inspected May 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
305 ft
2 main spans
Daily traffic
4,490
2009 count
Owner
State
State Highway Agency

About this bridge

Dettman RD over I-94 is a steel continuous stringer/multi-beam or girder carrying Dettman RD over I-94 in Jackson County, Michigan. It was built in 2009, so it is 16 years old, younger than the Michigan average of 48.3 years.

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

It carries about 4,490 vehicles a day, projected to reach 5,900 by 2029. The structure is 305 ft (93 m) long and 48 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesDettman RD
CrossesI-94
Location0.2 MI W of E JCT US-127
RouteCounty Highway 0
Coordinates42.27689, -84.36491
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating46.1 US tons

Structure

MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHL 93
Structure length305 ft (93 m)
Longest span168 ft (51.1 m)
Deck width48 ft (14.5 m)
Roadway width44 ft (13.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,490 (2009)
Projected traffic5,900 by 2029
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed6.2 mi (10 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Dettman RD over I-94 built?

It was built in 2009, making it 16 years old in 2025.

What condition is Dettman RD over I-94 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 May 2023.

How much traffic does Dettman RD over I-94 carry?

About 4,490 vehicles per day (2009 count).

How long is Dettman RD over I-94?

The structure is 305 ft (93 m) long with a longest span of 168 ft (51.1 m) and a deck 48 ft wide.

Who owns Dettman RD over I-94?

It is owned by the State Highway Agency.