US Bridges

Chaney Lake Road over Little Black River

Poor

Gogebic County, Michigan · Sec 21 Wakefield Twp · Structure no. 000000000002987

Built
1934
91 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
329
1998 count
Owner
County
County Highway Agency

About this bridge

Chaney Lake Road over Little Black River is a steel stringer/multi-beam or girder carrying Chaney Lake Road over Little Black River in Gogebic County, Michigan. It was built in 1934, so it is 91 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 3 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.

It carries about 329 vehicles a day, projected to reach 329 by 2018. The structure is 40 ft (12.2 m) long and 33 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesChaney Lake Road
CrossesLittle Black River
LocationSec 21 Wakefield Twp
RouteCounty Highway 2739
Coordinates46.45798, -89.94327
Functional classRural Major Collector

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.4 US tons
Inventory rating36 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length40 ft (12.2 m)
Longest span38 ft (11.5 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic329 (1998)
Projected traffic329 by 2018
Trucks0%
Lanes on structure2
Traffic directionTwo-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 statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$283,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Chaney Lake Road over Little Black River built?

It was built in 1934, making it 91 years old in 2025.

What condition is Chaney Lake Road over Little 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 Chaney Lake Road over Little Black River carry?

About 329 vehicles per day (1998 count).

How long is Chaney Lake Road over Little Black River?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.5 m) and a deck 33 ft wide.

Who owns Chaney Lake Road over Little Black River?

It is owned by the County Highway Agency.