US Bridges

Rs 1100 8.5-AA.1 over Trib. to Little Blue Rv.

Good

Washington County, Kansas · North Street in Hanover · Structure no. 000000001010510

Built
2001
24 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
22 ft
2 main spans
Daily traffic
240
2014 count
Owner
County
County Highway Agency

About this bridge

Rs 1100 8.5-AA.1 over Trib. to Little Blue Rv. is a concrete culvert carrying Rs 1100 8.5-AA.1 over Trib. to Little Blue Rv. in Washington County, Kansas. It was built in 2001, so it is 24 years old, younger 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 240 vehicles a day, projected to reach 288 by 2043. The structure is 22 ft (6.6 m) long and 128 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRs 1100 8.5-AA.1
CrossesTrib. to Little Blue Rv.
LocationNorth Street in Hanover
RouteCounty Highway 1100
CountyWashington County
StateKansas
Coordinates39.89283, -96.87969
Functional classRural Major Collector

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating78.2 US tons
Inventory rating46.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length22 ft (6.6 m)
Longest span10 ft (3.1 m)
Deck width128 ft (39 m)
Roadway width128 ft (39 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic240 (2014)
Projected traffic288 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty 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 Rs 1100 8.5-AA.1 over Trib. to Little Blue Rv. built?

It was built in 2001, making it 24 years old in 2025.

What condition is Rs 1100 8.5-AA.1 over Trib. to Little Blue Rv. 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 February 2023.

How much traffic does Rs 1100 8.5-AA.1 over Trib. to Little Blue Rv. carry?

About 240 vehicles per day (2014 count).

How long is Rs 1100 8.5-AA.1 over Trib. to Little Blue Rv.?

The structure is 22 ft (6.6 m) long with a longest span of 10 ft (3.1 m) and a deck 128 ft wide.

Who owns Rs 1100 8.5-AA.1 over Trib. to Little Blue Rv.?

It is owned by the County Highway Agency.