US Bridges

K18 HWY over Spillman Creek

Fair

Lincoln County, Kansas · 8.89 MI E K181 · Structure no. 999901800530201

Built
1953
72 years old
Condition
Fair
inspected November 2024
Type
Tee Beam
Concrete Continuous
Length
219 ft
4 main spans
Daily traffic
930
2023 count
Owner
State
State Highway Agency

About this bridge

K18 HWY over Spillman Creek is a concrete continuous tee beam carrying K18 HWY over Spillman Creek in Lincoln County, Kansas. It was built in 1953, so it is 72 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 930 vehicles a day, roughly 16% of them trucks, projected to reach 1,007 by 2044. The structure is 219 ft (66.6 m) long and 31 ft wide. If it were closed, the detour would be 39.8 mi (64 km).

Location

Open in Google Maps
CarriesK18 HWY
CrossesSpillman Creek
Location8.89 MI E K181
RouteState Highway 18
CountyLincoln County
StateKansas
Coordinates39.05056, -98.23583
Functional classRural Minor Arterial

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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating46.8 US tons
Inventory rating27.4 US tons

Structure

Structure typeTee Beam
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadH 20
Structure length219 ft (66.6 m)
Longest span63 ft (19.2 m)
Deck width31 ft (9.6 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic930 (2023)
Projected traffic1,007 by 2044
Trucks16%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed39.8 mi (64 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 K18 HWY over Spillman Creek built?

It was built in 1953, making it 72 years old in 2025.

What condition is K18 HWY over 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 November 2024.

How much traffic does K18 HWY over Spillman Creek carry?

About 930 vehicles per day (2023 count), of which roughly 16% are trucks.

How long is K18 HWY over Spillman Creek?

The structure is 219 ft (66.6 m) long with a longest span of 63 ft (19.2 m) and a deck 31 ft wide.

Who owns K18 HWY over Spillman Creek?

It is owned by the State Highway Agency.