US Bridges

K-181 HWY over North Branch Spillman

Good

Lincoln County, Kansas · 8.70 MI N JCT K-18 · Structure no. 999918100530381

Built
1994
31 years old
Condition
Good
inspected November 2024
Type
Slab
Concrete Continuous
Length
133 ft
3 main spans
Daily traffic
198
2023 count
Owner
State
State Highway Agency

About this bridge

K-181 HWY over North Branch Spillman is a concrete continuous slab carrying K-181 HWY over North Branch Spillman in Lincoln County, Kansas. It was built in 1994, so it is 31 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 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 198 vehicles a day, roughly 17% of them trucks, projected to reach 202 by 2044. The structure is 133 ft (40.4 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesK-181 HWY
CrossesNorth Branch Spillman
Location8.70 MI N JCT K-18
RouteState Highway 181
StateKansas
Coordinates39.15194, -98.39611
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 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 evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating83 US tons
Inventory rating49.1 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckNot applicable
Main spans3
Design loadHS 20
Structure length133 ft (40.4 m)
Longest span52 ft (15.8 m)
Deck width34 ft (10.4 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic198 (2023)
Projected traffic202 by 2044
Trucks17%
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

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 K-181 HWY over North Branch Spillman built?

It was built in 1994, making it 31 years old in 2025.

What condition is K-181 HWY over North Branch Spillman 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 November 2024.

How much traffic does K-181 HWY over North Branch Spillman carry?

About 198 vehicles per day (2023 count), of which roughly 17% are trucks.

How long is K-181 HWY over North Branch Spillman?

The structure is 133 ft (40.4 m) long with a longest span of 52 ft (15.8 m) and a deck 34 ft wide.

Who owns K-181 HWY over North Branch Spillman?

It is owned by the State Highway Agency.