US Bridges

Grange Road over Looking Glass River

Fair

Clinton County, Michigan · 1/2 S of Herbison · Structure no. 000000000001916

Built
2008
17 years old
Condition
Fair
inspected October 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
140 ft
2 main spans
Daily traffic
2,311
2011 count
Owner
County
County Highway Agency

About this bridge

Grange Road over Looking Glass River is a prestressed concrete box beam or girders - multiple carrying Grange Road over Looking Glass River in Clinton County, Michigan. It was built in 2008, so it is 17 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 2,311 vehicles a day, roughly 5% of them trucks, projected to reach 4,174 by 2031. The structure is 140 ft (42.8 m) long and 34 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesGrange Road
CrossesLooking Glass River
Location1/2 S of Herbison
RouteCounty Highway 1911
CountyClinton County
StateMichigan
Coordinates42.82496, -84.78881
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating72.9 US tons
Inventory rating46.4 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length140 ft (42.8 m)
Longest span70 ft (21.4 m)
Deck width34 ft (10.5 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,311 (2011)
Projected traffic4,174 by 2031
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 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 Grange Road over Looking Glass River built?

It was built in 2008, making it 17 years old in 2025.

What condition is Grange 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 Grange Road over Looking Glass River carry?

About 2,311 vehicles per day (2011 count), of which roughly 5% are trucks.

How long is Grange Road over Looking Glass River?

The structure is 140 ft (42.8 m) long with a longest span of 70 ft (21.4 m) and a deck 34 ft wide.

Who owns Grange Road over Looking Glass River?

It is owned by the County Highway Agency.