US Bridges

Loomis Road over Chippewa River

PoorPosted for load

Isabella County, Michigan · .2 M S NW Cor Sec 10 T14N · Structure no. 000000000004325

Built
1974
51 years old
Condition
Poor
inspected April 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
292 ft
5 main spans
Daily traffic
441
2012 count
Owner
County
County Highway Agency

About this bridge

Loomis Road over Chippewa River is a prestressed concrete box beam or girders - multiple carrying Loomis Road over Chippewa River in Isabella County, Michigan. It was built in 1974, so it is 51 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 3 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 441 vehicles a day, roughly 5% of them trucks, projected to reach 655 by 2032. The structure is 292 ft (89 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesLoomis Road
CrossesChippewa River
Location.2 M S NW Cor Sec 10 T14N
RouteCounty Highway 0
Coordinates43.62294, -84.66817
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating33.2 US tons
Inventory rating20 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans5
Design loadHS 20
Structure length292 ft (89 m)
Longest span58 ft (17.6 m)
Deck width33 ft (10.2 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic441 (2012)
Projected traffic655 by 2032
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Loomis Road over Chippewa River built?

It was built in 1974, making it 51 years old in 2025.

What condition is Loomis Road over Chippewa River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in April 2024.

How much traffic does Loomis Road over Chippewa River carry?

About 441 vehicles per day (2012 count), of which roughly 5% are trucks.

How long is Loomis Road over Chippewa River?

The structure is 292 ft (89 m) long with a longest span of 58 ft (17.6 m) and a deck 33 ft wide.

Who owns Loomis Road over Chippewa River?

It is owned by the County Highway Agency.