US Bridges

Bennett Road over ST Joseph River

FairPosted for load

St. Joseph County, Michigan · 4 MI East of Mendon · Structure no. 000000000010322

Built
1972
53 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
174 ft
3 main spans
Daily traffic
381
2010 count
Owner
County
County Highway Agency

About this bridge

Bennett Road over ST Joseph River is a prestressed concrete box beam or girders - multiple carrying Bennett Road over ST Joseph River in St. Joseph County, Michigan. It was built in 1972, so it is 53 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. Its operating status is: posted for load restriction.

It carries about 381 vehicles a day, roughly 12% of them trucks, projected to reach 405 by 2030. The structure is 174 ft (53 m) long and 30 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesBennett Road
CrossesST Joseph River
Location4 MI East of Mendon
RouteCounty Highway 0
Coordinates41.99766, -85.37577
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
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.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating45 US tons
Inventory rating26.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length174 ft (53 m)
Longest span58 ft (17.6 m)
Deck width30 ft (9.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic381 (2010)
Projected traffic405 by 2030
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Bennett Road over ST Joseph River built?

It was built in 1972, making it 53 years old in 2025.

What condition is Bennett Road over ST Joseph 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 November 2023.

How much traffic does Bennett Road over ST Joseph River carry?

About 381 vehicles per day (2010 count), of which roughly 12% are trucks.

How long is Bennett Road over ST Joseph River?

The structure is 174 ft (53 m) long with a longest span of 58 ft (17.6 m) and a deck 30 ft wide.

Who owns Bennett Road over ST Joseph River?

It is owned by the County Highway Agency.