US Bridges

Ramp H over I-496 Ramp EB

Fair

Ingham County, Michigan · In Lansing · Structure no. 000000000003739

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

About this bridge

Ramp H over I-496 Ramp EB is a steel stringer/multi-beam or girder carrying Ramp H over I-496 Ramp EB 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 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 3,400 vehicles a day, roughly 8% of them trucks, projected to reach 3,910 by 2008. The structure is 94 ft (28.8 m) long and 27 ft wide.

Location

Open in Google Maps
CarriesRamp H
CrossesI-496 Ramp EB
LocationIn Lansing
RouteInterstate 496
CountyIngham County
StateMichigan
Coordinates42.72573, -84.5639
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.
Substructure7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 10 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 rating87.5 US tons
Inventory rating52.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length94 ft (28.8 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 2008
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 proposedDeck replacement with only incidental widening
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp H over I-496 Ramp EB built?

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

What condition is Ramp H over I-496 Ramp EB 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 November 2024.

How much traffic does Ramp H over I-496 Ramp EB carry?

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

How long is Ramp H over I-496 Ramp EB?

The structure is 94 ft (28.8 m) long with a longest span of 86 ft (26.2 m) and a deck 27 ft wide.

Who owns Ramp H over I-496 Ramp EB?

It is owned by the State Highway Agency.