US Bridges

I-496 EB over Gr Riv I-96 Bl River ST

Fair

Ingham County, Michigan · In Lansing · Structure no. 000000000012943

Built
2000
25 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
749 ft
8 main spans
Daily traffic
32,900
2020 count
Owner
State
State Highway Agency

About this bridge

I-496 EB over Gr Riv I-96 Bl River ST is a prestressed concrete stringer/multi-beam or girder carrying I-496 EB over Gr Riv I-96 Bl River ST in Ingham County, Michigan. It was built in 2000, so it is 25 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 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 32,900 vehicles a day, roughly 6% of them trucks, projected to reach 36,725 by 2040. The structure is 749 ft (228.4 m) long and 45 ft wide.

Location

Open in Google Maps
CarriesI-496 EB
CrossesGr Riv I-96 Bl River ST
LocationIn Lansing
RouteInterstate 496
CountyIngham County
StateMichigan
Coordinates42.72555, -84.54483
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating13.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans8 (+1 approach)
Design loadHS 25 or greater
Structure length749 ft (228.4 m)
Longest span95 ft (28.9 m)
Deck width45 ft (13.8 m)
Roadway width42 ft (12.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic32,900 (2020)
Projected traffic36,725 by 2040
Trucks6%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and waterway
Detour if closed—
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

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 I-496 EB over Gr Riv I-96 Bl River ST built?

It was built in 2000, making it 25 years old in 2025.

What condition is I-496 EB over Gr Riv I-96 Bl River ST 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 September 2023.

How much traffic does I-496 EB over Gr Riv I-96 Bl River ST carry?

About 32,900 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is I-496 EB over Gr Riv I-96 Bl River ST?

The structure is 749 ft (228.4 m) long with a longest span of 95 ft (28.9 m) and a deck 45 ft wide.

Who owns I-496 EB over Gr Riv I-96 Bl River ST?

It is owned by the State Highway Agency.