US Bridges

FR 157 Old US-2 over Tamarack River

Good

Iron County, Michigan · 3.5 MI NW of Elmwood · Structure no. 000000000004187

Built
2008
17 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
76 ft
1 main span
Daily traffic
99
2000 count
Owner
County
County Highway Agency

About this bridge

FR 157 Old US-2 over Tamarack River is a prestressed concrete box beam or girders - multiple carrying FR 157 Old US-2 over Tamarack River in Iron County, Michigan. It was built in 2008, so it is 17 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 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 99 vehicles a day, roughly 2% of them trucks, projected to reach 114 by 2020. The structure is 76 ft (23.2 m) long and 29 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesFR 157 Old US-2
CrossesTamarack River
Location3.5 MI NW of Elmwood
RouteCounty Highway 0
Coordinates46.24699, -88.97825
Functional classRural Minor 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 above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating53.9 US tons
Inventory rating41.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length76 ft (23.2 m)
Longest span72 ft (21.9 m)
Deck width29 ft (8.8 m)
Roadway width27 ft (8.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic99 (2000)
Projected traffic114 by 2020
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FR 157 Old US-2 over Tamarack River built?

It was built in 2008, making it 17 years old in 2025.

What condition is FR 157 Old US-2 over Tamarack 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 FR 157 Old US-2 over Tamarack River carry?

About 99 vehicles per day (2000 count), of which roughly 2% are trucks.

How long is FR 157 Old US-2 over Tamarack River?

The structure is 76 ft (23.2 m) long with a longest span of 72 ft (21.9 m) and a deck 29 ft wide.

Who owns FR 157 Old US-2 over Tamarack River?

It is owned by the County Highway Agency.