US Bridges

General Motor CO D over M-43

Fair

Ingham County, Michigan · W Lts of Lansing · Structure no. 000000000003792

Built
1968
57 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
119 ft
2 main spans
Daily traffic
550
1988 count
Owner
State
State Highway Agency

About this bridge

General Motor CO D over M-43 is a steel stringer/multi-beam or girder carrying General Motor CO D over M-43 in Ingham County, Michigan. It was built in 1968, so it is 57 years old, older than the Michigan average of 48.3 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 550 vehicles a day, projected to reach 633 by 2008. The structure is 119 ft (36.4 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesGeneral Motor CO D
CrossesM-43
LocationW Lts of Lansing
CountyIngham County
StateMichigan
Coordinates42.74053, -84.5821
Functional classUrban Local

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.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating67.9 US tons
Inventory rating40.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length119 ft (36.4 m)
Longest span58 ft (17.8 m)
Deck width28 ft (8.4 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic550 (1988)
Projected traffic633 by 2008
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 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 proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was General Motor CO D over M-43 built?

It was built in 1968, making it 57 years old in 2025.

What condition is General Motor CO D over M-43 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 August 2024.

How much traffic does General Motor CO D over M-43 carry?

About 550 vehicles per day (1988 count).

How long is General Motor CO D over M-43?

The structure is 119 ft (36.4 m) long with a longest span of 58 ft (17.8 m) and a deck 28 ft wide.

Who owns General Motor CO D over M-43?

It is owned by the State Highway Agency.