US Bridges

Main Street over ST Joseph River

Fair

St. Joseph County, Indiana · 00.30 N SR 933 · Structure no. 7100122

Built
1907
118 years old, rebuilt 1995
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
324 ft
3 main spans
Daily traffic
24,491
2019 count
Owner
County
County Highway Agency

About this bridge

Main Street over ST Joseph River is a prestressed concrete continuous stringer/multi-beam or girder carrying Main Street over ST Joseph River in St. Joseph County, Indiana. It was built in 1907 and reconstructed in 1995, so it is 118 years old, older than the Indiana average of 46.6 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 24,491 vehicles a day, roughly 2% of them trucks, projected to reach 29,884 by 2039. The structure is 324 ft (98.9 m) long and 76 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesMain Street
CrossesST Joseph River
Location00.30 N SR 933
RouteCity Street 0
CountySt. Joseph County
StateIndiana
Coordinates41.66528, -86.18127
Functional classUrban Other Principal Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2024
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 adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating72.8 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length324 ft (98.9 m)
Longest span118 ft (35.9 m)
Deck width76 ft (23.2 m)
Roadway width62 ft (18.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic24,491 (2019)
Projected traffic29,884 by 2039
Trucks2%
Lanes on structure5
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$3.1 million (2024 estimate)
NavigationNavigation control on waterway (bridge permit required)

Frequently asked questions

When was Main Street over ST Joseph River built?

It was built in 1907, making it 118 years old in 2025. It was reconstructed in 1995.

What condition is Main Street 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 September 2024.

How much traffic does Main Street over ST Joseph River carry?

About 24,491 vehicles per day (2019 count), of which roughly 2% are trucks.

How long is Main Street over ST Joseph River?

The structure is 324 ft (98.9 m) long with a longest span of 118 ft (35.9 m) and a deck 76 ft wide.

Who owns Main Street over ST Joseph River?

It is owned by the County Highway Agency.