US Bridges

Loomis RD over US-10

Fair

Isabella County, Michigan · 3.4 MI NW of Midland Col · Structure no. 000000000004270

Built
1962
63 years old, rebuilt 2006
Condition
Fair
inspected March 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
234 ft
4 main spans
Daily traffic
470
1974 count
Owner
State
State Highway Agency

About this bridge

Loomis RD over US-10 is a steel stringer/multi-beam or girder carrying Loomis RD over US-10 in Isabella County, Michigan. It was built in 1962 and reconstructed in 2006, 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 470 vehicles a day, roughly 3% of them trucks, projected to reach 470 by 1977. The structure is 234 ft (71.4 m) long and 33 ft wide.

CarriesLoomis RD
CrossesUS-10
Location3.4 MI NW of Midland Col
RouteCounty Highway 3787
Coordinates43.79905, -84.66682
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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2025
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 rating103.6 US tons
Inventory rating62.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length234 ft (71.4 m)
Longest span80 ft (24.4 m)
Deck width33 ft (10 m)
Roadway width30 ft (9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic470 (1974)
Projected traffic470 by 1977
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed—
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 Loomis RD over US-10 built?

It was built in 1962, making it 63 years old in 2025. It was reconstructed in 2006.

What condition is Loomis RD over US-10 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 March 2025.

How much traffic does Loomis RD over US-10 carry?

About 470 vehicles per day (1974 count), of which roughly 3% are trucks.

How long is Loomis RD over US-10?

The structure is 234 ft (71.4 m) long with a longest span of 80 ft (24.4 m) and a deck 33 ft wide.

Who owns Loomis RD over US-10?

It is owned by the State Highway Agency.