US Bridges

Wright Road over Looking Glass River

Fair

Clinton County, Michigan · 1/2 MI N of Clark RD · Structure no. 000000000001918

Built
1996
29 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
3,658
2011 count
Owner
County
County Highway Agency

About this bridge

Wright Road over Looking Glass River is a prestressed concrete box beam or girders - multiple carrying Wright Road over Looking Glass River in Clinton County, Michigan. It was built in 1996, so it is 29 years old, younger 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 3,658 vehicles a day, roughly 5% of them trucks, projected to reach 6,607 by 2031. The structure is 165 ft (50.3 m) long and 44 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesWright Road
CrossesLooking Glass River
Location1/2 MI N of Clark RD
RouteCounty Highway 1923
Coordinates42.82075, -84.73952
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.9 US tons
Inventory rating54.2 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length165 ft (50.3 m)
Longest span55 ft (16.7 m)
Deck width44 ft (13.3 m)
Roadway width41 ft (12.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,658 (2011)
Projected traffic6,607 by 2031
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Wright Road over Looking Glass River built?

It was built in 1996, making it 29 years old in 2025.

What condition is Wright Road over Looking Glass River 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 October 2024.

How much traffic does Wright Road over Looking Glass River carry?

About 3,658 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Wright Road over Looking Glass River?

The structure is 165 ft (50.3 m) long with a longest span of 55 ft (16.7 m) and a deck 44 ft wide.

Who owns Wright Road over Looking Glass River?

It is owned by the County Highway Agency.