US Bridges

Halfmound RD over North Fork Walnut Creek

FairPosted for load

Jefferson County, Kansas · 0.5S 4.1W of Nortonville · Structure no. 000000000440033

Built
1958
67 years old, rebuilt 2017
Condition
Fair
inspected November 2024
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
90
2019 count
Owner
County
County Highway Agency

About this bridge

Halfmound RD over North Fork Walnut Creek is a concrete culvert carrying Halfmound RD over North Fork Walnut Creek in Jefferson County, Kansas. It was built in 1958 and reconstructed in 2017, so it is 67 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. Its operating status is: posted for load restriction.

It carries about 90 vehicles a day, projected to reach 100 by 2040. The structure is 35 ft (10.7 m) long and 31 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesHalfmound RD
CrossesNorth Fork Walnut Creek
Location0.5S 4.1W of Nortonville
RouteCounty Highway 1325
CountyJefferson County
StateKansas
Coordinates39.40604, -95.41464
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
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionNovember 2024
Inspection intervalevery 12 months
Operating statusPosted for load 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 adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating26.6 US tons
Inventory rating15.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadH 20
Structure length35 ft (10.7 m)
Longest span16 ft (4.9 m)
Deck width31 ft (9.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic90 (2019)
Projected traffic100 by 2040
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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 Halfmound RD over North Fork Walnut Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 2017.

What condition is Halfmound RD over North Fork Walnut 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 Halfmound RD over North Fork Walnut Creek carry?

About 90 vehicles per day (2019 count).

How long is Halfmound RD over North Fork Walnut Creek?

The structure is 35 ft (10.7 m) long with a longest span of 16 ft (4.9 m) and a deck 31 ft wide.

Who owns Halfmound RD over North Fork Walnut Creek?

It is owned by the County Highway Agency.