US Bridges

Cty RD 310(Z.9-8.9 over Verdigris River

FairPosted for load

Greenwood County, Kansas · 5.0N 5.9E of Hamilton · Structure no. 000370957905669

Built
1972
53 years old
Condition
Fair
inspected June 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
203 ft
3 main spans
Daily traffic
33
2006 count
Owner
County
County Highway Agency

About this bridge

Cty RD 310(Z.9-8.9 over Verdigris River is a steel continuous stringer/multi-beam or girder carrying Cty RD 310(Z.9-8.9 over Verdigris River in Greenwood County, Kansas. It was built in 1972, so it is 53 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 33 vehicles a day, roughly 1% of them trucks, projected to reach 33 by 2043. The structure is 203 ft (62 m) long and 23 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCty RD 310(Z.9-8.9
CrossesVerdigris River
Location5.0N 5.9E of Hamilton
RouteCounty Highway 3720
CountyGreenwood County
StateKansas
Coordinates38.05596, -96.05066
Functional classRural Minor 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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
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 evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating34.4 US tons
Inventory rating20.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadUnknown
Structure length203 ft (62 m)
Longest span80 ft (24.4 m)
Deck width23 ft (6.9 m)
Roadway width20 ft (6.2 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic33 (2006)
Projected traffic33 by 2043
Trucks1%
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 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 Cty RD 310(Z.9-8.9 over Verdigris River built?

It was built in 1972, making it 53 years old in 2025.

What condition is Cty RD 310(Z.9-8.9 over Verdigris River 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 June 2023.

How much traffic does Cty RD 310(Z.9-8.9 over Verdigris River carry?

About 33 vehicles per day (2006 count), of which roughly 1% are trucks.

How long is Cty RD 310(Z.9-8.9 over Verdigris River?

The structure is 203 ft (62 m) long with a longest span of 80 ft (24.4 m) and a deck 23 ft wide.

Who owns Cty RD 310(Z.9-8.9 over Verdigris River?

It is owned by the County Highway Agency.