US Bridges

Cty RD L 945-476.8 over Stream

GoodPosted for load

Lyon County, Kansas · 4.0N of Allen · Structure no. 000000000560270

Built
1977
48 years old
Condition
Good
inspected February 2023
Type
Culvert
Concrete
Length
20 ft
1 main span
Daily traffic
25
2007 count
Owner
County
County Highway Agency

About this bridge

Cty RD L 945-476.8 over Stream is a concrete culvert carrying Cty RD L 945-476.8 over Stream in Lyon County, Kansas. It was built in 1977, so it is 48 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. Its operating status is: posted for load restriction.

It carries about 25 vehicles a day, projected to reach 30 by 2043. The structure is 20 ft (6.1 m) long and 35 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

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CarriesCty RD L 945-476.8
CrossesStream
Location4.0N of Allen
RouteCounty Highway 415
CountyLyon County
StateKansas
Coordinates38.71367, -96.168
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 protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating25 US tons
Inventory rating25 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans1
Design loadUnknown
Structure length20 ft (6.1 m)
Longest span20 ft (6 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.9 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic25 (2007)
Projected traffic30 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 L 945-476.8 over Stream built?

It was built in 1977, making it 48 years old in 2025.

What condition is Cty RD L 945-476.8 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 February 2023.

How much traffic does Cty RD L 945-476.8 over Stream carry?

About 25 vehicles per day (2007 count).

How long is Cty RD L 945-476.8 over Stream?

The structure is 20 ft (6.1 m) long with a longest span of 20 ft (6 m) and a deck 35 ft wide.

Who owns Cty RD L 945-476.8 over Stream?

It is owned by the County Highway Agency.