US Bridges

Washington Ave over I-496

Fair

Ingham County, Michigan · In Lansing · Structure no. 000000000003744

Built
1968
57 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
206 ft
4 main spans
Daily traffic
9,500
1988 count
Owner
State
State Highway Agency

About this bridge

Washington Ave over I-496 is a steel stringer/multi-beam or girder carrying Washington Ave over I-496 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 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 9,500 vehicles a day, roughly 3% of them trucks, projected to reach 10,925 by 2008. The structure is 206 ft (62.8 m) long and 88 ft wide.

Location

Open in Google Maps
CarriesWashington Ave
CrossesI-496
LocationIn Lansing
RouteState Highway 0
CountyIngham County
StateMichigan
Coordinates42.72608, -84.55232
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 9 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 geometry2: Basically intolerable, requiring high priority of replacement
Approach roadway alignment8: Equal to present desirable criteria
Operating rating66.8 US tons
Inventory rating40 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length206 ft (62.8 m)
Longest span70 ft (21.2 m)
Deck width88 ft (26.9 m)
Roadway width70 ft (21.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic9,500 (1988)
Projected traffic10,925 by 2008
Trucks3%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
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 Washington Ave over I-496 built?

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

What condition is Washington Ave over I-496 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 December 2024.

How much traffic does Washington Ave over I-496 carry?

About 9,500 vehicles per day (1988 count), of which roughly 3% are trucks.

How long is Washington Ave over I-496?

The structure is 206 ft (62.8 m) long with a longest span of 70 ft (21.2 m) and a deck 88 ft wide.

Who owns Washington Ave over I-496?

It is owned by the State Highway Agency.