US Bridges

RD 20 over Trib. to Pawnee River

PoorPosted for load

Ness County, Kansas · 10.0S 1.0W of Bazine · Structure no. 000000000680460

Built
1938
87 years old
Condition
Poor
inspected November 2023
Type
Slab
Concrete
Length
59 ft
5 main spans
Daily traffic
75
2018 count
Owner
County
County Highway Agency

About this bridge

RD 20 over Trib. to Pawnee River is a concrete slab carrying RD 20 over Trib. to Pawnee River in Ness County, Kansas. It was built in 1938, so it is 87 years old, older than the Kansas average of 52.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 75 vehicles a day, roughly 10% of them trucks, projected to reach 100 by 2041. The structure is 59 ft (18 m) long and 24 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesRD 20
CrossesTrib. to Pawnee River
Location10.0S 1.0W of Bazine
RouteCounty Highway 325
StateKansas
Coordinates38.29086, -99.71483
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionNovember 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating25 US tons
Inventory rating25 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20
Structure length59 ft (18 m)
Longest span10 ft (3 m)
Deck width24 ft (7.3 m)
Roadway width22 ft (6.6 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic75 (2018)
Projected traffic100 by 2041
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$390,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was RD 20 over Trib. to Pawnee River built?

It was built in 1938, making it 87 years old in 2025.

What condition is RD 20 over Trib. to Pawnee River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in November 2023.

How much traffic does RD 20 over Trib. to Pawnee River carry?

About 75 vehicles per day (2018 count), of which roughly 10% are trucks.

How long is RD 20 over Trib. to Pawnee River?

The structure is 59 ft (18 m) long with a longest span of 10 ft (3 m) and a deck 24 ft wide.

Who owns RD 20 over Trib. to Pawnee River?

It is owned by the County Highway Agency.