US Bridges

Rs 1715 20th RD over N. Branch Spillman Creek

Fair

Lincoln County, Kansas · 6.0W 3.0N of Ash Grove · Structure no. 000000000530480

Built
1965
60 years old
Condition
Fair
inspected October 2024
Type
Tee Beam
Concrete Continuous
Length
94 ft
3 main spans
Daily traffic
25
2022 count
Owner
County
County Highway Agency

About this bridge

Rs 1715 20th RD over N. Branch Spillman Creek is a concrete continuous tee beam carrying Rs 1715 20th RD over N. Branch Spillman Creek in Lincoln County, Kansas. It was built in 1965, so it is 60 years old, older than the Kansas average of 52.8 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 25 vehicles a day, roughly 10% of them trucks, projected to reach 30 by 2044. The structure is 94 ft (28.5 m) long and 25 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

Open in Google Maps
CarriesRs 1715 20th RD
CrossesN. Branch Spillman Creek
Location6.0W 3.0N of Ash Grove
RouteCounty Highway 1715
CountyLincoln County
StateKansas
Coordinates39.2075, -98.47069
Functional classRural Major 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating37.5 US tons
Inventory rating22.3 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length94 ft (28.5 m)
Longest span35 ft (10.6 m)
Deck width25 ft (7.7 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2022)
Projected traffic30 by 2044
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Rs 1715 20th RD over N. Branch Spillman Creek built?

It was built in 1965, making it 60 years old in 2025.

What condition is Rs 1715 20th RD over N. Branch Spillman Creek 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 October 2024.

How much traffic does Rs 1715 20th RD over N. Branch Spillman Creek carry?

About 25 vehicles per day (2022 count), of which roughly 10% are trucks.

How long is Rs 1715 20th RD over N. Branch Spillman Creek?

The structure is 94 ft (28.5 m) long with a longest span of 35 ft (10.6 m) and a deck 25 ft wide.

Who owns Rs 1715 20th RD over N. Branch Spillman Creek?

It is owned by the County Highway Agency.