US Bridges

SH 71 Ml over Middle Rush Creek

Good

Lincoln County, Colorado · 7.7 MI N of SH 94-PUNKIN · Structure no. I-22-F

Built
2008
17 years old
Condition
Good
inspected February 2025
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete
Length
265 ft
3 main spans
Daily traffic
700
2020 count
Owner
State
State Highway Agency

About this bridge

SH 71 Ml over Middle Rush Creek is a prestressed concrete box beam or girders - single or spread carrying SH 71 Ml over Middle Rush Creek in Lincoln County, Colorado. It was built in 2008, so it is 17 years old, younger 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 265 ft (80.8 m) long and 39 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesSH 71 Ml
CrossesMiddle Rush Creek
Location7.7 MI N of SH 94-PUNKIN
RouteState Highway 71C
Coordinates38.96355, -103.70164
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
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
Deck geometry7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60.7 US tons
Inventory rating36.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length265 ft (80.8 m)
Longest span88 ft (26.7 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 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 closed3.7 mi (6 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 Middle Rush Creek built?

It was built in 2008, making it 17 years old in 2025.

What condition is SH 71 Ml over Middle Rush 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 Middle Rush Creek carry?

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

How long is SH 71 Ml over Middle Rush Creek?

The structure is 265 ft (80.8 m) long with a longest span of 88 ft (26.7 m) and a deck 39 ft wide.

Who owns SH 71 Ml over Middle Rush Creek?

It is owned by the State Highway Agency.