US Bridges

K18 HWY over S Fk Solomon R Drainage

Good

Graham County, Kansas · 2.05 MI SE US24 · Structure no. 999901800330301

Built
1950
75 years old
Condition
Good
inspected April 2023
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
488
2023 count
Owner
State
State Highway Agency

About this bridge

K18 HWY over S Fk Solomon R Drainage is a concrete culvert carrying K18 HWY over S Fk Solomon R Drainage in Graham County, Kansas. It was built in 1950, so it is 75 years old, older 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 488 vehicles a day, roughly 36% of them trucks, projected to reach 508 by 2044. The structure is 35 ft (10.7 m) long and 58 ft wide.

Location

Open in Google Maps
CarriesK18 HWY
CrossesS Fk Solomon R Drainage
Location2.05 MI SE US24
RouteState Highway 18
CountyGraham County
StateKansas
Coordinates39.3575, -99.67139
Functional classRural Minor Arterial

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionApril 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating29 US tons
Inventory rating17 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 20
Structure length35 ft (10.7 m)
Longest span12 ft (3.7 m)
Deck width58 ft (17.8 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic488 (2023)
Projected traffic508 by 2044
Trucks36%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed—
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 S Fk Solomon R Drainage built?

It was built in 1950, making it 75 years old in 2025.

What condition is K18 HWY over S Fk Solomon R Drainage 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 April 2023.

How much traffic does K18 HWY over S Fk Solomon R Drainage carry?

About 488 vehicles per day (2023 count), of which roughly 36% are trucks.

How long is K18 HWY over S Fk Solomon R Drainage?

The structure is 35 ft (10.7 m) long with a longest span of 12 ft (3.7 m) and a deck 58 ft wide.

Who owns K18 HWY over S Fk Solomon R Drainage?

It is owned by the State Highway Agency.