US Bridges

8.6-AA.1 335 over Trib to Little Blue Rv

PoorPosted for load

Washington County, Kansas · Hanover · Structure no. 001010869103146

Built
1940
85 years old
Condition
Poor
inspected June 2023
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
33 ft
2 main spans
Daily traffic
40
2014 count
Owner
County
County Highway Agency

About this bridge

8.6-AA.1 335 over Trib to Little Blue Rv is a wood or timber stringer/multi-beam or girder carrying 8.6-AA.1 335 over Trib to Little Blue Rv in Washington County, Kansas. It was built in 1940, so it is 85 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 40 vehicles a day, projected to reach 48 by 2043. The structure is 33 ft (10.1 m) long and 40 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
Carries8.6-AA.1 335
CrossesTrib to Little Blue Rv
LocationHanover
RouteCounty Highway 0
CountyWashington County
StateKansas
Coordinates39.89157, -96.8797
Functional classRural Local

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating21.9 US tons
Inventory rating16.5 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length33 ft (10.1 m)
Longest span17 ft (5.2 m)
Deck width40 ft (12.1 m)
Roadway width39 ft (12 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic40 (2014)
Projected traffic48 by 2043
Trucks0%
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$240,000
NavigationNo navigation control on waterway

Frequently asked questions

When was 8.6-AA.1 335 over Trib to Little Blue Rv built?

It was built in 1940, making it 85 years old in 2025.

What condition is 8.6-AA.1 335 over Trib to Little Blue Rv 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 June 2023.

How much traffic does 8.6-AA.1 335 over Trib to Little Blue Rv carry?

About 40 vehicles per day (2014 count).

How long is 8.6-AA.1 335 over Trib to Little Blue Rv?

The structure is 33 ft (10.1 m) long with a longest span of 17 ft (5.2 m) and a deck 40 ft wide.

Who owns 8.6-AA.1 335 over Trib to Little Blue Rv?

It is owned by the County Highway Agency.