US Bridges

Hoffman Street over Portage River

Good

St. Joseph County, Michigan · Jctn/ E Hoffman & Wood ST · Structure no. 000000000010392

Built
1976
49 years old, rebuilt 2019
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
92 ft
3 main spans
Daily traffic
4,000
2018 count
Owner
City
City or Municipal Highway Agency

About this bridge

Hoffman Street over Portage River is a prestressed concrete box beam or girders - single or spread carrying Hoffman Street over Portage River in St. Joseph County, Michigan. It was built in 1976 and reconstructed in 2019, so it is 49 years old, older 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 4,000 vehicles a day, roughly 3% of them trucks, projected to reach 5,000 by 2038. The structure is 92 ft (28 m) long and 43 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesHoffman Street
CrossesPortage River
LocationJctn/ E Hoffman & Wood ST
RouteCity Street 2043
Coordinates41.9547, -85.6242
Functional classUrban 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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.3 US tons
Inventory rating42.9 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadGreater than HL 93
Structure length92 ft (28 m)
Longest span31 ft (9.4 m)
Deck width43 ft (13 m)
Roadway width35 ft (10.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,000 (2018)
Projected traffic5,000 by 2038
Trucks3%
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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$440,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Hoffman Street over Portage River built?

It was built in 1976, making it 49 years old in 2025. It was reconstructed in 2019.

What condition is Hoffman Street over Portage 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 September 2024.

How much traffic does Hoffman Street over Portage River carry?

About 4,000 vehicles per day (2018 count), of which roughly 3% are trucks.

How long is Hoffman Street over Portage River?

The structure is 92 ft (28 m) long with a longest span of 31 ft (9.4 m) and a deck 43 ft wide.

Who owns Hoffman Street over Portage River?

It is owned by the City or Municipal Highway Agency.