US Bridges

Lark Road over Unnamed Stream

Fair

Lincoln County, Kansas · 1.5W of Vesper · Structure no. 000530715604340

Built
1925
100 years old, rebuilt 2004
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
40 ft
2 main spans
Daily traffic
60
2022 count
Owner
County
County Highway Agency

About this bridge

Lark Road over Unnamed Stream is a steel continuous stringer/multi-beam or girder carrying Lark Road over Unnamed Stream in Lincoln County, Kansas. It was built in 1925 and reconstructed in 2004, so it is 100 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 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 60 vehicles a day, roughly 5% of them trucks, projected to reach 70 by 2044. The structure is 40 ft (12.2 m) long and 25 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesLark Road
CrossesUnnamed Stream
Location1.5W of Vesper
RouteCounty Highway 0
CountyLincoln County
StateKansas
Coordinates39.03056, -98.30861
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating99.8 US tons
Inventory rating83.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckWood or timber
Main spans2
Design loadUnknown
Structure length40 ft (12.2 m)
Longest span19 ft (5.7 m)
Deck width25 ft (7.5 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic60 (2022)
Projected traffic70 by 2044
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 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 Lark Road over Unnamed Stream built?

It was built in 1925, making it 100 years old in 2025. It was reconstructed in 2004.

What condition is Lark Road over Unnamed 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 October 2024.

How much traffic does Lark Road over Unnamed Stream carry?

About 60 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is Lark Road over Unnamed Stream?

The structure is 40 ft (12.2 m) long with a longest span of 19 ft (5.7 m) and a deck 25 ft wide.

Who owns Lark Road over Unnamed Stream?

It is owned by the County Highway Agency.