US Bridges

SW 30 S. P.8-10.0 over Stream

Good

Kingman County, Kansas · 2.0S 3.0W of Kingman · Structure no. 000480727806300

Built
1976
49 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
32 ft
4 main spans
Daily traffic
10
2021 count
Owner
County
County Highway Agency

About this bridge

SW 30 S. P.8-10.0 over Stream is a concrete culvert carrying SW 30 S. P.8-10.0 over Stream in Kingman County, Kansas. It was built in 1976, so it is 49 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 10 vehicles a day, roughly 5% of them trucks, projected to reach 12 by 2043. The structure is 32 ft (9.9 m) long and 30 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

Open in Google Maps
CarriesSW 30 S. P.8-10.0
CrossesStream
Location2.0S 3.0W of Kingman
RouteCounty Highway 0
CountyKingman County
StateKansas
Coordinates37.60368, -98.17731
Functional classRural Minor 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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating35.7 US tons
Inventory rating26.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadUnknown
Structure length32 ft (9.9 m)
Longest span8 ft (2.4 m)
Deck width30 ft (9.1 m)
Roadway width29 ft (8.7 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic10 (2021)
Projected traffic12 by 2043
Trucks5%
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 SW 30 S. P.8-10.0 over Stream built?

It was built in 1976, making it 49 years old in 2025.

What condition is SW 30 S. P.8-10.0 over Stream 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 January 2023.

How much traffic does SW 30 S. P.8-10.0 over Stream carry?

About 10 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is SW 30 S. P.8-10.0 over Stream?

The structure is 32 ft (9.9 m) long with a longest span of 8 ft (2.4 m) and a deck 30 ft wide.

Who owns SW 30 S. P.8-10.0 over Stream?

It is owned by the County Highway Agency.