US Bridges

Golden Lane over Unknown Channel

Fair

Oakland County, Michigan · W Bloomfield Twp Sec 29 · Structure no. 000000000013649

Built
1997
28 years old
Condition
Fair
inspected June 2024
Type
Culvert
Steel
Length
29 ft
3 main spans
Daily traffic
500
2010 count
Owner
County
County Highway Agency

About this bridge

Golden Lane over Unknown Channel is a steel culvert carrying Golden Lane over Unknown Channel in Oakland County, Michigan. It was built in 1997, so it is 28 years old, younger than the Michigan average of 48.3 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 500 vehicles a day, roughly 1% of them trucks, projected to reach 819 by 2030. The structure is 29 ft (8.8 m) long. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesGolden Lane
CrossesUnknown Channel
LocationW Bloomfield Twp Sec 29
RouteCounty Highway 0
CountyOakland County
StateMichigan
Coordinates42.54714, -83.41758
Functional classUrban Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating107.1 US tons
Inventory rating107.1 US tons

Structure

Structure typeCulvert
MaterialSteel
DeckNot applicable
Main spans3
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span13 ft (4 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2010)
Projected traffic819 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Golden Lane over Unknown Channel built?

It was built in 1997, making it 28 years old in 2025.

What condition is Golden Lane over Unknown Channel in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in June 2024.

How much traffic does Golden Lane over Unknown Channel carry?

About 500 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Golden Lane over Unknown Channel?

The structure is 29 ft (8.8 m) long with a longest span of 13 ft (4 m).

Who owns Golden Lane over Unknown Channel?

It is owned by the County Highway Agency.