US Bridges

100th Road over Unnamed Stream

FairPosted for load

Lincoln County, Kansas · 2.0W 5.8S of Vesper · Structure no. 000530715004448

Built
1940
85 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Wood or Timber
Length
25 ft
2 main spans
Daily traffic
35
2022 count
Owner
County
County Highway Agency

About this bridge

100th Road over Unnamed Stream is a wood or timber stringer/multi-beam or girder carrying 100th Road over Unnamed Stream in Lincoln County, Kansas. It was built in 1940, so it is 85 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. Its operating status is: posted for load restriction.

It carries about 35 vehicles a day, roughly 5% of them trucks, projected to reach 42 by 2044. The structure is 25 ft (7.6 m) long and 24 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Carries100th Road
CrossesUnnamed Stream
Location2.0W 5.8S of Vesper
RouteCounty Highway 0
StateKansas
Coordinates38.94751, -98.31842
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating12.9 US tons
Inventory rating9.1 US tons

Structure

MaterialWood or Timber
DeckWood or timber
Main spans2
Design loadUnknown
Structure length25 ft (7.6 m)
Longest span12 ft (3.6 m)
Deck width24 ft (7.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deck100 ft (30.5 m)

Traffic and service

Average daily traffic35 (2022)
Projected traffic42 by 2044
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 statusPossibly eligible for the National Register; requires further investigation
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$260,000 (2022 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was 100th Road over Unnamed Stream built?

It was built in 1940, making it 85 years old in 2025.

What condition is 100th 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 100th Road over Unnamed Stream carry?

About 35 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is 100th Road over Unnamed Stream?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.6 m) and a deck 24 ft wide.

Who owns 100th Road over Unnamed Stream?

It is owned by the County Highway Agency.