US Bridges

SH 13 Ml over Milk Creek

Good

Moffat County, Colorado · 20 MI S of Craig · Structure no. C-06-Q

Built
1977
48 years old
Condition
Good
inspected April 2022
Type
Culvert
Concrete
Length
24 ft
2 main spans
Daily traffic
1,500
2020 count
Owner
State
State Highway Agency

About this bridge

SH 13 Ml over Milk Creek is a concrete culvert carrying SH 13 Ml over Milk Creek in Moffat County, Colorado. It was built in 1977, so it is 48 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 1,500 vehicles a day, roughly 22% of them trucks, projected to reach 1,830 by 2040. The structure is 24 ft (7.4 m) long and 109 ft wide. If it were closed, the detour would be 49.1 mi (79 km).

CarriesSH 13 Ml
CrossesMilk Creek
Location20 MI S of Craig
RouteState Highway 13A
Coordinates40.33, -107.7498
Functional classRural Principal Arterial - Other

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert7 GoodSome minor problems.
Last inspectionApril 2022
Inspection intervalevery 48 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 rating110.1 US tons
Inventory rating105.8 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 width109 ft (33.3 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2020)
Projected traffic1,830 by 2040
Trucks22%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed49.1 mi (79 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 13 Ml over Milk Creek built?

It was built in 1977, making it 48 years old in 2025.

What condition is SH 13 Ml over Milk 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 April 2022.

How much traffic does SH 13 Ml over Milk Creek carry?

About 1,500 vehicles per day (2020 count), of which roughly 22% are trucks.

How long is SH 13 Ml over Milk Creek?

The structure is 24 ft (7.4 m) long with a longest span of 11 ft (3.5 m) and a deck 109 ft wide.

Who owns SH 13 Ml over Milk Creek?

It is owned by the State Highway Agency.