US Bridges

Mt Hope HWY over I-96 & I-496 Ramp

Fair

Eaton County, Michigan · 1.8 MI S of M-43 · Structure no. 000000000002326

Built
1962
63 years old, rebuilt 1989
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
398 ft
6 main spans
Daily traffic
1,600
1988 count
Owner
State
State Highway Agency

About this bridge

Mt Hope HWY over I-96 & I-496 Ramp is a prestressed concrete stringer/multi-beam or girder carrying Mt Hope HWY over I-96 & I-496 Ramp in Eaton County, Michigan. It was built in 1962 and reconstructed in 1989, so it is 63 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 1,600 vehicles a day, roughly 3% of them trucks, projected to reach 60,600 by 2010. The structure is 398 ft (121.2 m) long and 32 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesMt Hope HWY
CrossesI-96 & I-496 Ramp
Location1.8 MI S of M-43
RouteCounty Highway 0
CountyEaton County
StateMichigan
Coordinates42.71204, -84.66891
Functional classUrban Minor Arterial

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 inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating62.2 US tons
Inventory rating33.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans6
Design loadH 20
Structure length398 ft (121.2 m)
Longest span97 ft (29.5 m)
Deck width32 ft (9.9 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,600 (1988)
Projected traffic60,600 by 2010
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed3.1 mi (5 km)
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 Mt Hope HWY over I-96 & I-496 Ramp built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 1989.

What condition is Mt Hope HWY over I-96 & I-496 Ramp 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 July 2023.

How much traffic does Mt Hope HWY over I-96 & I-496 Ramp carry?

About 1,600 vehicles per day (1988 count), of which roughly 3% are trucks.

How long is Mt Hope HWY over I-96 & I-496 Ramp?

The structure is 398 ft (121.2 m) long with a longest span of 97 ft (29.5 m) and a deck 32 ft wide.

Who owns Mt Hope HWY over I-96 & I-496 Ramp?

It is owned by the State Highway Agency.