US Bridges

K39 HWY over Prong Creek

Fair

Bourbon County, Kansas · 5.53 MI E Neosho Coln · Structure no. 999903900060411

Built
1932
93 years old
Condition
Fair
inspected February 2024
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
1,077
2023 count
Owner
State
State Highway Agency

About this bridge

K39 HWY over Prong Creek is a concrete culvert carrying K39 HWY over Prong Creek in Bourbon County, Kansas. It was built in 1932, so it is 93 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 1,077 vehicles a day, roughly 12% of them trucks, projected to reach 1,314 by 2044. The structure is 44 ft (13.4 m) long and 33 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesK39 HWY
CrossesProng Creek
Location5.53 MI E Neosho Coln
RouteState Highway 39
CountyBourbon County
StateKansas
Coordinates37.71806, -94.98722
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum 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 alignment7: Better than present minimum criteria
Operating rating95.8 US tons
Inventory rating57 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans3
Design loadH 15
Structure length44 ft (13.4 m)
Longest span14 ft (4.3 m)
Deck width33 ft (10.2 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,077 (2023)
Projected traffic1,314 by 2044
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 K39 HWY over Prong Creek built?

It was built in 1932, making it 93 years old in 2025.

What condition is K39 HWY over Prong 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 February 2024.

How much traffic does K39 HWY over Prong Creek carry?

About 1,077 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is K39 HWY over Prong Creek?

The structure is 44 ft (13.4 m) long with a longest span of 14 ft (4.3 m) and a deck 33 ft wide.

Who owns K39 HWY over Prong Creek?

It is owned by the State Highway Agency.