US Bridges

N7 949.9-482.5 over Stream

FairPosted for load

Lyon County, Kansas · 2.0N 0.5W of Admire · Structure no. 000560949904825

Built
1934
91 years old
Condition
Fair
inspected July 2024
Type
Culvert
Concrete
Length
29 ft
3 main spans
Daily traffic
20
2007 count
Owner
County
County Highway Agency

About this bridge

N7 949.9-482.5 over Stream is a concrete culvert carrying N7 949.9-482.5 over Stream in Lyon County, Kansas. It was built in 1934, so it is 91 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 20 vehicles a day, projected to reach 20 by 2043. The structure is 29 ft (8.8 m) long and 24 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

Location

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CarriesN7 949.9-482.5
CrossesStream
Location2.0N 0.5W of Admire
RouteCounty Highway 0
CountyLyon County
StateKansas
Coordinates38.67328, -96.11703
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating44.1 US tons
Inventory rating27.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span9 ft (2.7 m)
Deck width24 ft (7.2 m)
Roadway width21 ft (6.4 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic20 (2007)
Projected traffic20 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 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 proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was N7 949.9-482.5 over Stream built?

It was built in 1934, making it 91 years old in 2025.

What condition is N7 949.9-482.5 over Stream 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 July 2024.

How much traffic does N7 949.9-482.5 over Stream carry?

About 20 vehicles per day (2007 count).

How long is N7 949.9-482.5 over Stream?

The structure is 29 ft (8.8 m) long with a longest span of 9 ft (2.7 m) and a deck 24 ft wide.

Who owns N7 949.9-482.5 over Stream?

It is owned by the County Highway Agency.