US Bridges

Broadway Street over ST Joseph River

Good

Branch County, Michigan · In Village of Union City · Structure no. 000000000001189

Built
1978
47 years old, rebuilt 2017
Condition
Good
inspected July 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
136 ft
2 main spans
Daily traffic
3,315
2016 count
Owner
City
City or Municipal Highway Agency

About this bridge

Broadway Street over ST Joseph River is a prestressed concrete box beam or girders - single or spread carrying Broadway Street over ST Joseph River in Branch County, Michigan. It was built in 1978 and reconstructed in 2017, so it is 47 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 3,315 vehicles a day, roughly 1% of them trucks, projected to reach 3,900 by 2036. The structure is 136 ft (41.5 m) long and 44 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesBroadway Street
CrossesST Joseph River
LocationIn Village of Union City
RouteCity Street 23
Coordinates42.06577, -85.13413
Functional classRural Major Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating46.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length136 ft (41.5 m)
Longest span66 ft (20.1 m)
Deck width44 ft (13.5 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,315 (2016)
Projected traffic3,900 by 2036
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$650 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Broadway Street over ST Joseph River built?

It was built in 1978, making it 47 years old in 2025. It was reconstructed in 2017.

What condition is Broadway Street over ST Joseph River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

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

About 3,315 vehicles per day (2016 count), of which roughly 1% are trucks.

How long is Broadway Street over ST Joseph River?

The structure is 136 ft (41.5 m) long with a longest span of 66 ft (20.1 m) and a deck 44 ft wide.

Who owns Broadway Street over ST Joseph River?

It is owned by the City or Municipal Highway Agency.