US Bridges

Fisher Road over Black River

Good

St. Clair County, Michigan · Sec. 5 Grant Twp. · Structure no. 000000000010168

Built
2019
6 years old
Condition
Good
inspected October 2023
Type
Truss - Thru
Steel
Length
185 ft
1 main span
Daily traffic
350
2018 count
Owner
County
County Highway Agency

About this bridge

Fisher Road over Black River is a steel truss - thru carrying Fisher Road over Black River in St. Clair County, Michigan. It was built in 2019, so it is 6 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 350 vehicles a day, roughly 50% of them trucks, projected to reach 550 by 2038. The structure is 185 ft (56.4 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFisher Road
CrossesBlack River
LocationSec. 5 Grant Twp.
RouteCounty Highway 0
CountySt. Clair County
StateMichigan
Coordinates43.16468, -82.62179
Functional classRural Local

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.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadGreater than HL 93
Structure length185 ft (56.4 m)
Longest span180 ft (54.9 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic350 (2018)
Projected traffic550 by 2038
Trucks50%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$235,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Fisher Road over Black River built?

It was built in 2019, making it 6 years old in 2025.

What condition is Fisher Road over Black 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 October 2023.

How much traffic does Fisher Road over Black River carry?

About 350 vehicles per day (2018 count), of which roughly 50% are trucks.

How long is Fisher Road over Black River?

The structure is 185 ft (56.4 m) long with a longest span of 180 ft (54.9 m) and a deck 33 ft wide.

Who owns Fisher Road over Black River?

It is owned by the County Highway Agency.