US Bridges

County Road 40 over Landsman Creek

Fair

Kit Carson County, Colorado · 3.2 Miles North of I-70 · Structure no. KITC-40-3.20-02

Built
1972
53 years old
Condition
Fair
inspected December 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
78 ft
2 main spans
Daily traffic
301
2022 count
Owner
County
County Highway Agency

About this bridge

County Road 40 over Landsman Creek is a steel continuous stringer/multi-beam or girder carrying County Road 40 over Landsman Creek in Kit Carson County, Colorado. It was built in 1972, so it is 53 years old, older than the Colorado average of 42.2 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.

It carries about 301 vehicles a day, roughly 2% of them trucks, projected to reach 350 by 2042. The structure is 78 ft (23.9 m) long and 29 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

Location

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CarriesCounty Road 40
CrossesLandsman Creek
Location3.2 Miles North of I-70
RouteCounty Highway 0
CountyKit Carson County
StateColorado
Coordinates39.34666, -102.42761
Functional classRural Minor Collector

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.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating45.9 US tons
Inventory rating27.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckCorrugated steel
Main spans2
Design loadUnknown
Structure length78 ft (23.9 m)
Longest span38 ft (11.7 m)
Deck width29 ft (8.7 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic301 (2022)
Projected traffic350 by 2042
Trucks2%
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 County Road 40 over Landsman Creek built?

It was built in 1972, making it 53 years old in 2025.

What condition is County Road 40 over Landsman Creek 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 December 2023.

How much traffic does County Road 40 over Landsman Creek carry?

About 301 vehicles per day (2022 count), of which roughly 2% are trucks.

How long is County Road 40 over Landsman Creek?

The structure is 78 ft (23.9 m) long with a longest span of 38 ft (11.7 m) and a deck 29 ft wide.

Who owns County Road 40 over Landsman Creek?

It is owned by the County Highway Agency.