US Bridges

Rs 316 85 over Silver Lake Drainage Dt

Good

Shawnee County, Kansas · 0.2N of Silver Lake · Structure no. 000000000890160

Built
1999
26 years old
Condition
Good
inspected August 2024
Type
Slab
Concrete
Length
28 ft
1 main span
Daily traffic
1,465
2020 count
Owner
County
County Highway Agency

About this bridge

Rs 316 85 over Silver Lake Drainage Dt is a concrete slab carrying Rs 316 85 over Silver Lake Drainage Dt in Shawnee County, Kansas. It was built in 1999, so it is 26 years old, younger than the Kansas average of 52.8 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 1,465 vehicles a day, roughly 1% of them trucks, projected to reach 1,421 by 2040. The structure is 28 ft (8.5 m) long and 32 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesRs 316 85
CrossesSilver Lake Drainage Dt
Location0.2N of Silver Lake
RouteCounty Highway 316
StateKansas
Coordinates39.10884, -95.85389
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection7 GoodSome minor problems.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85.3 US tons
Inventory rating51.1 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length28 ft (8.5 m)
Longest span23 ft (7 m)
Deck width32 ft (9.8 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic1,465 (2020)
Projected traffic1,421 by 2040
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 Rs 316 85 over Silver Lake Drainage Dt built?

It was built in 1999, making it 26 years old in 2025.

What condition is Rs 316 85 over Silver Lake Drainage Dt 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 2024.

How much traffic does Rs 316 85 over Silver Lake Drainage Dt carry?

About 1,465 vehicles per day (2020 count), of which roughly 1% are trucks.

How long is Rs 316 85 over Silver Lake Drainage Dt?

The structure is 28 ft (8.5 m) long with a longest span of 23 ft (7 m) and a deck 32 ft wide.

Who owns Rs 316 85 over Silver Lake Drainage Dt?

It is owned by the County Highway Agency.