US Bridges

SH 71 Ml over Long Creek

Good

Lincoln County, Colorado · 10.3 Miles South of Limon · Structure no. H-22-B

Built
1957
68 years old, rebuilt 2020
Condition
Good
inspected February 2025
Type
Culvert
Concrete
Length
51 ft
3 main spans
Daily traffic
700
2020 count
Owner
State
State Highway Agency

About this bridge

SH 71 Ml over Long Creek is a concrete culvert carrying SH 71 Ml over Long Creek in Lincoln County, Colorado. It was built in 1957 and reconstructed in 2020, so it is 68 years old, older than the Colorado average of 42.2 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.

It carries about 700 vehicles a day, roughly 24% of them trucks, projected to reach 980 by 2040. The structure is 51 ft (15.5 m) long and 77 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

CarriesSH 71 Ml
CrossesLong Creek
Location10.3 Miles South of Limon
RouteState Highway 71C
Coordinates39.10005, -103.70313
Functional classRural Minor Arterial

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 protection8 Very GoodNo problems noted.
Culvert7 GoodSome minor problems.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating57.1 US tons
Inventory rating34.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadUnknown
Structure length51 ft (15.5 m)
Longest span18 ft (5.6 m)
Deck width77 ft (23.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic700 (2020)
Projected traffic980 by 2040
Trucks24%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

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 Long Creek built?

It was built in 1957, making it 68 years old in 2025. It was reconstructed in 2020.

What condition is SH 71 Ml over Long Creek 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 2025.

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

About 700 vehicles per day (2020 count), of which roughly 24% are trucks.

How long is SH 71 Ml over Long Creek?

The structure is 51 ft (15.5 m) long with a longest span of 18 ft (5.6 m) and a deck 77 ft wide.

Who owns SH 71 Ml over Long Creek?

It is owned by the State Highway Agency.