US Bridges

SH 71 Ml over Lake Creek

Fair

Lincoln County, Colorado · 2.9 MI N of Limon · Structure no. G-22-BQ

Built
1975
50 years old
Condition
Fair
inspected February 2025
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
1,300
2020 count
Owner
State
State Highway Agency

About this bridge

SH 71 Ml over Lake Creek is a concrete culvert carrying SH 71 Ml over Lake Creek in Lincoln County, Colorado. It was built in 1975, so it is 50 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 1,300 vehicles a day, roughly 25% of them trucks, projected to reach 1,625 by 2040. The structure is 24 ft (7.4 m) long and 72 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSH 71 Ml
CrossesLake Creek
Location2.9 MI N of Limon
RouteState Highway 71D
Coordinates39.31477, -103.67757
Functional classRural Principal Arterial - Other

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 protection8 Very GoodNo problems noted.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2025
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating75.6 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length24 ft (7.4 m)
Longest span11 ft (3.5 m)
Deck width72 ft (21.9 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2020)
Projected traffic1,625 by 2040
Trucks25%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SH 71 Ml over Lake Creek built?

It was built in 1975, making it 50 years old in 2025.

What condition is SH 71 Ml over Lake 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 February 2025.

How much traffic does SH 71 Ml over Lake Creek carry?

About 1,300 vehicles per day (2020 count), of which roughly 25% are trucks.

How long is SH 71 Ml over Lake Creek?

The structure is 24 ft (7.4 m) long with a longest span of 11 ft (3.5 m) and a deck 72 ft wide.

Who owns SH 71 Ml over Lake Creek?

It is owned by the State Highway Agency.