US Bridges

Silver Lake Road over Davis Creek

Good

Livingston County, Michigan · Sec 21 Green Oak Twp · Structure no. 000000000005811

Built
1958
67 years old
Condition
Good
inspected August 2023
Type
Tee Beam
Concrete
Length
40 ft
1 main span
Daily traffic
7,030
2013 count
Owner
County
County Highway Agency

About this bridge

Silver Lake Road over Davis Creek is a concrete tee beam carrying Silver Lake Road over Davis Creek in Livingston County, Michigan. It was built in 1958, so it is 67 years old, older 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 7,030 vehicles a day, projected to reach 7,751 by 2030. The structure is 40 ft (12.2 m) long and 35 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSilver Lake Road
CrossesDavis Creek
LocationSec 21 Green Oak Twp
RouteCounty Highway 4710
Coordinates42.46887, -83.74401
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.2 US tons
Inventory rating36 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length40 ft (12.2 m)
Longest span38 ft (11.5 m)
Deck width35 ft (10.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic7,030 (2013)
Projected traffic7,751 by 2030
Trucks—
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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Silver Lake Road over Davis Creek built?

It was built in 1958, making it 67 years old in 2025.

What condition is Silver Lake Road over Davis Creek 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 August 2023.

How much traffic does Silver Lake Road over Davis Creek carry?

About 7,030 vehicles per day (2013 count).

How long is Silver Lake Road over Davis Creek?

The structure is 40 ft (12.2 m) long with a longest span of 38 ft (11.5 m) and a deck 35 ft wide.

Who owns Silver Lake Road over Davis Creek?

It is owned by the County Highway Agency.