US Bridges

Silver Lake Road over Shiawassee River

Good

Genesee County, Michigan · In Fenton · Structure no. 000000000002466

Built
2016
9 years old
Condition
Good
inspected September 2023
Type
Culvert
Aluminum, Wrought Iron, or Cast Iron
Length
34 ft
1 main span
Daily traffic
13,800
2015 count
Owner
City
City or Municipal Highway Agency

About this bridge

Silver Lake Road over Shiawassee River is a aluminum, wrought iron, or cast iron culvert carrying Silver Lake Road over Shiawassee River in Genesee County, Michigan. It was built in 2016, so it is 9 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 13,800 vehicles a day, roughly 10% of them trucks, projected to reach 15,800 by 2035. The structure is 34 ft (10.3 m) long. If it were closed, the detour would be 5 mi (8 km).

CarriesSilver Lake Road
CrossesShiawassee River
LocationIn Fenton
RouteCity Street 0
Coordinates42.79771, -83.70649
Functional classUrban Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating76.8 US tons
Inventory rating59.3 US tons

Structure

Structure typeCulvert
MaterialAluminum, Wrought Iron, or Cast Iron
DeckNot applicable
Main spans1
Design loadGreater than HL 93
Structure length34 ft (10.3 m)
Longest span34 ft (10.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic13,800 (2015)
Projected traffic15,800 by 2035
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal 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 Road over Shiawassee River built?

It was built in 2016, making it 9 years old in 2025.

What condition is Silver Lake Road over Shiawassee River 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 2023.

How much traffic does Silver Lake Road over Shiawassee River carry?

About 13,800 vehicles per day (2015 count), of which roughly 10% are trucks.

How long is Silver Lake Road over Shiawassee River?

The structure is 34 ft (10.3 m) long with a longest span of 34 ft (10.3 m).

Who owns Silver Lake Road over Shiawassee River?

It is owned by the City or Municipal Highway Agency.