US Bridges

Ramp E over I-496 Ramp WB

Fair

Ingham County, Michigan · In Lansing · Structure no. 000000000003740

Built
1970
55 years old
Condition
Fair
inspected December 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
97 ft
1 main span
Daily traffic
3,400
1988 count
Owner
State
State Highway Agency

About this bridge

Ramp E over I-496 Ramp WB is a steel stringer/multi-beam or girder carrying Ramp E over I-496 Ramp WB in Ingham County, Michigan. It was built in 1970, so it is 55 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 3,400 vehicles a day, roughly 8% of them trucks, projected to reach 3,910 by 2018. The structure is 97 ft (29.7 m) long and 27 ft wide.

Location

Open in Google Maps
CarriesRamp E
CrossesI-496 Ramp WB
LocationIn Lansing
RouteInterstate 496
CountyIngham County
StateMichigan
Coordinates42.72628, -84.5625
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Last inspectionDecember 2024
Inspection intervalevery 9 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Approach roadway alignment8: Equal to present desirable criteria
Operating rating100.8 US tons
Inventory rating60.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length97 ft (29.7 m)
Longest span86 ft (26.2 m)
Deck width27 ft (8.2 m)
Roadway width17 ft (5.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,400 (1988)
Projected traffic3,910 by 2018
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 Ramp E over I-496 Ramp WB built?

It was built in 1970, making it 55 years old in 2025.

What condition is Ramp E over I-496 Ramp WB 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 Ramp E over I-496 Ramp WB carry?

About 3,400 vehicles per day (1988 count), of which roughly 8% are trucks.

How long is Ramp E over I-496 Ramp WB?

The structure is 97 ft (29.7 m) long with a longest span of 86 ft (26.2 m) and a deck 27 ft wide.

Who owns Ramp E over I-496 Ramp WB?

It is owned by the State Highway Agency.