US Bridges

M-43 EB over Gtw RR

Fair

Ingham County, Michigan · 0.1 MI E of Park Lake RD · Structure no. 000000000003801

Built
1977
48 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
198 ft
3 main spans
Daily traffic
27,408
2007 count
Owner
State
State Highway Agency

About this bridge

M-43 EB over Gtw RR is a steel stringer/multi-beam or girder carrying M-43 EB over Gtw RR in Ingham County, Michigan. It was built in 1977, so it is 48 years old, younger 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 5 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 27,408 vehicles a day, roughly 3% of them trucks, projected to reach 31,097 by 2018. The structure is 198 ft (60.3 m) long and 41 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesM-43 EB
CrossesGtw RR
Location0.1 MI E of Park Lake RD
RouteState Highway 43
CountyIngham County
StateMichigan
Coordinates42.72499, -84.44534
Functional classUrban Other Principal Arterial

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating80.4 US tons
Inventory rating48.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans3
Design loadHS 25 or greater
Structure length198 ft (60.3 m)
Longest span86 ft (26.3 m)
Deck width41 ft (12.6 m)
Roadway width31 ft (9.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic27,408 (2007)
Projected traffic31,097 by 2018
Trucks3%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway and pedestrian
CrossesRailroad
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

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 M-43 EB over Gtw RR built?

It was built in 1977, making it 48 years old in 2025.

What condition is M-43 EB over Gtw RR 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 M-43 EB over Gtw RR carry?

About 27,408 vehicles per day (2007 count), of which roughly 3% are trucks.

How long is M-43 EB over Gtw RR?

The structure is 198 ft (60.3 m) long with a longest span of 86 ft (26.3 m) and a deck 41 ft wide.

Who owns M-43 EB over Gtw RR?

It is owned by the State Highway Agency.