US Bridges

FR 137 over Kidney Creek

Good

Iron County, Michigan · Sec 20 T46N R354 · Structure no. 000000000004195

Built
2003
22 years old
Condition
Good
inspected September 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
46 ft
1 main span
Daily traffic
250
2002 count
Owner
County
County Highway Agency

About this bridge

FR 137 over Kidney Creek is a prestressed concrete box beam or girders - multiple carrying FR 137 over Kidney Creek in Iron County, Michigan. It was built in 2003, so it is 22 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 250 vehicles a day, roughly 20% of them trucks, projected to reach 300 by 2020. The structure is 46 ft (14 m) long and 28 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesFR 137
CrossesKidney Creek
LocationSec 20 T46N R354
RouteCounty Highway 0
Coordinates46.37251, -88.70273
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating46.1 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length46 ft (14 m)
Longest span43 ft (13.1 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic250 (2002)
Projected traffic300 by 2020
Trucks20%
Lanes on structure2
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was FR 137 over Kidney Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is FR 137 over Kidney Creek 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 137 over Kidney Creek carry?

About 250 vehicles per day (2002 count), of which roughly 20% are trucks.

How long is FR 137 over Kidney Creek?

The structure is 46 ft (14 m) long with a longest span of 43 ft (13.1 m) and a deck 28 ft wide.

Who owns FR 137 over Kidney Creek?

It is owned by the County Highway Agency.