US Bridges

Elm Lane over Black River

PoorPosted for load

Gogebic County, Michigan · Sec 34 Bessemer Twp · Structure no. 000000000003001

Built
1940
85 years old, rebuilt 2003
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
65 ft
4 main spans
Daily traffic
10
1998 count
Owner
County
County Highway Agency

About this bridge

Elm Lane over Black River is a steel stringer/multi-beam or girder carrying Elm Lane over Black River in Gogebic County, Michigan. It was built in 1940 and reconstructed in 2003, so it is 85 years old, older than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 2 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 10 vehicles a day, projected to reach 10 by 2018. The structure is 65 ft (19.8 m) long and 16 ft wide. If it were closed, the detour would be 124.9 mi (201 km).

CarriesElm Lane
CrossesBlack River
LocationSec 34 Bessemer Twp
RouteCounty Highway 0
Coordinates46.42334, -90.04776
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure2 CriticalAdvanced deterioration of primary structural elements. Bridge may be closed until corrective action is taken.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating20 US tons
Inventory rating11.8 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans4
Design loadH 15
Structure length65 ft (19.8 m)
Longest span17 ft (5.1 m)
Deck width16 ft (4.8 m)
Roadway width15 ft (4.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic10 (1998)
Projected traffic10 by 2018
Trucks0%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed124.9 mi (201 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$459,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Elm Lane over Black River built?

It was built in 1940, making it 85 years old in 2025. It was reconstructed in 2003.

What condition is Elm Lane over Black River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in September 2024.

How much traffic does Elm Lane over Black River carry?

About 10 vehicles per day (1998 count).

How long is Elm Lane over Black River?

The structure is 65 ft (19.8 m) long with a longest span of 17 ft (5.1 m) and a deck 16 ft wide.

Who owns Elm Lane over Black River?

It is owned by the County Highway Agency.