US Bridges

Silver Lake RD over Silver Lake Canal

Fair

Oakland County, Michigan · South of Walton Blvd · Structure no. 000000000013170

Built
2003
22 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
11,583
2003 count
Owner
County
County Highway Agency

About this bridge

Silver Lake RD over Silver Lake Canal is a concrete culvert carrying Silver Lake RD over Silver Lake Canal in Oakland 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 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 11,583 vehicles a day, roughly 3% of them trucks, projected to reach 13,900 by 2023. The structure is 20 ft (6.1 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSilver Lake RD
CrossesSilver Lake Canal
LocationSouth of Walton Blvd
RouteCounty Highway 0
Coordinates42.67825, -83.33404
Functional classUrban Collector

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 protection7 GoodSome minor problems.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.1 US tons
Inventory rating36 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length20 ft (6.1 m)
Longest span20 ft (6.1 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic11,583 (2003)
Projected traffic13,900 by 2023
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Silver Lake RD over Silver Lake Canal built?

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

What condition is Silver Lake RD over Silver Lake Canal 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 July 2024.

How much traffic does Silver Lake RD over Silver Lake Canal carry?

About 11,583 vehicles per day (2003 count), of which roughly 3% are trucks.

How long is Silver Lake RD over Silver Lake Canal?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6.1 m).

Who owns Silver Lake RD over Silver Lake Canal?

It is owned by the County Highway Agency.