US Bridges

N Martinlutherking over Grand River

Fair

Ingham County, Michigan · In the City of Lansing · Structure no. 000000000003944

Built
1960
65 years old, rebuilt 2001
Condition
Fair
inspected October 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
442 ft
7 main spans
Daily traffic
9,625
2006 count
Owner
City
City or Municipal Highway Agency

About this bridge

N Martinlutherking over Grand River is a steel stringer/multi-beam or girder carrying N Martinlutherking over Grand River in Ingham County, Michigan. It was built in 1960 and reconstructed in 2001, so it is 65 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 9,625 vehicles a day, roughly 15% of them trucks, projected to reach 17,383 by 2026. The structure is 442 ft (134.7 m) long and 60 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesN Martinlutherking
CrossesGrand River
LocationIn the City of Lansing
RouteCity Street 2003
CountyIngham County
StateMichigan
Coordinates42.75603, -84.56756
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating77.2 US tons
Inventory rating46.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20
Structure length442 ft (134.7 m)
Longest span69 ft (21 m)
Deck width60 ft (18.4 m)
Roadway width50 ft (15.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,625 (2006)
Projected traffic17,383 by 2026
Trucks15%
Lanes on structure4
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$2.7 million
NavigationNo navigation control on waterway

Frequently asked questions

When was N Martinlutherking over Grand River built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 2001.

What condition is N Martinlutherking over Grand River 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 October 2023.

How much traffic does N Martinlutherking over Grand River carry?

About 9,625 vehicles per day (2006 count), of which roughly 15% are trucks.

How long is N Martinlutherking over Grand River?

The structure is 442 ft (134.7 m) long with a longest span of 69 ft (21 m) and a deck 60 ft wide.

Who owns N Martinlutherking over Grand River?

It is owned by the City or Municipal Highway Agency.