US Bridges

Willow HWY over I-96

Fair

Eaton County, Michigan · 1.0 MI S of Clinton Col · Structure no. 000000000002322

Built
1961
64 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
214 ft
4 main spans
Daily traffic
1,500
1988 count
Owner
State
State Highway Agency

About this bridge

Willow HWY over I-96 is a prestressed concrete stringer/multi-beam or girder carrying Willow HWY over I-96 in Eaton County, Michigan. It was built in 1961, so it is 64 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 1,500 vehicles a day, roughly 3% of them trucks, projected to reach 1,725 by 2008. The structure is 214 ft (65.2 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesWillow HWY
CrossesI-96
Location1.0 MI S of Clinton Col
RouteCounty Highway 0
CountyEaton County
StateMichigan
Coordinates42.75551, -84.6674
Functional classUrban Collector

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 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 geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadH 15
Structure length214 ft (65.2 m)
Longest span70 ft (21.3 m)
Deck width31 ft (9.4 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (1988)
Projected traffic1,725 by 2008
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 Willow HWY over I-96 built?

It was built in 1961, making it 64 years old in 2025.

What condition is Willow HWY over I-96 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 Willow HWY over I-96 carry?

About 1,500 vehicles per day (1988 count), of which roughly 3% are trucks.

How long is Willow HWY over I-96?

The structure is 214 ft (65.2 m) long with a longest span of 70 ft (21.3 m) and a deck 31 ft wide.

Who owns Willow HWY over I-96?

It is owned by the State Highway Agency.