US Bridges

Nottawa Road over ST Joseph River

Fair

St. Joseph County, Michigan · South of Mendon · Structure no. 000000000010295

Built
1968
57 years old
Condition
Fair
inspected November 2023
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
165 ft
3 main spans
Daily traffic
2,701
2019 count
Owner
County
County Highway Agency

About this bridge

Nottawa Road over ST Joseph River is a prestressed concrete box beam or girders - multiple carrying Nottawa Road over ST Joseph River in St. Joseph County, Michigan. It was built in 1968, so it is 57 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 2,701 vehicles a day, roughly 16% of them trucks, projected to reach 2,868 by 2039. The structure is 165 ft (50.3 m) long and 33 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesNottawa Road
CrossesST Joseph River
LocationSouth of Mendon
RouteCounty Highway 7861
CountySt. Joseph County
StateMichigan
Coordinates42.0049, -85.44954
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.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2023
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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating65.4 US tons
Inventory rating39.2 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHS 20
Structure length165 ft (50.3 m)
Longest span55 ft (16.7 m)
Deck width33 ft (10.2 m)
Roadway width31 ft (9.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,701 (2019)
Projected traffic2,868 by 2039
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Nottawa Road over ST Joseph River built?

It was built in 1968, making it 57 years old in 2025.

What condition is Nottawa 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 Nottawa Road over ST Joseph River carry?

About 2,701 vehicles per day (2019 count), of which roughly 16% are trucks.

How long is Nottawa Road over ST Joseph River?

The structure is 165 ft (50.3 m) long with a longest span of 55 ft (16.7 m) and a deck 33 ft wide.

Who owns Nottawa Road over ST Joseph River?

It is owned by the County Highway Agency.