US Bridges

I-496 WB over CSX RR & Holmes ST

Fair

Ingham County, Michigan · In Lansing · Structure no. 000000000003770

Built
1969
56 years old, rebuilt 2000
Condition
Fair
inspected March 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
675 ft
10 main spans
Daily traffic
33,453
2007 count
Owner
State
State Highway Agency

About this bridge

I-496 WB over CSX RR & Holmes ST is a steel stringer/multi-beam or girder carrying I-496 WB over CSX RR & Holmes ST in Ingham County, Michigan. It was built in 1969 and reconstructed in 2000, so it is 56 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 33,453 vehicles a day, roughly 7% of them trucks, projected to reach 35,237 by 2018. The structure is 675 ft (205.7 m) long and 43 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesI-496 WB
CrossesCSX RR & Holmes ST
LocationIn Lansing
RouteInterstate 496
CountyIngham County
StateMichigan
Coordinates42.72679, -84.53302
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating68.9 US tons
Inventory rating41.1 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans10
Design loadHS 20
Structure length675 ft (205.7 m)
Longest span81 ft (24.6 m)
Deck width43 ft (13.2 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic33,453 (2007)
Projected traffic35,237 by 2018
Trucks7%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-496 WB over CSX RR & Holmes ST built?

It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2000.

What condition is I-496 WB over CSX RR & Holmes 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 March 2023.

How much traffic does I-496 WB over CSX RR & Holmes ST carry?

About 33,453 vehicles per day (2007 count), of which roughly 7% are trucks.

How long is I-496 WB over CSX RR & Holmes ST?

The structure is 675 ft (205.7 m) long with a longest span of 81 ft (24.6 m) and a deck 43 ft wide.

Who owns I-496 WB over CSX RR & Holmes ST?

It is owned by the State Highway Agency.