US Bridges

US 50 Ml over Huerfano River

Fair

Pueblo County, Colorado · Just E. of Intersct to Bo · Structure no. L-19-B

Built
1921
104 years old, rebuilt 1948
Condition
Fair
inspected January 2024
Type
Arch - Deck
Concrete
Length
416 ft
5 main spans
Daily traffic
4,600
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 Ml over Huerfano River is a concrete arch - deck carrying US 50 Ml over Huerfano River in Pueblo County, Colorado. It was built in 1921 and reconstructed in 1948, so it is 104 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 5 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 4,600 vehicles a day, roughly 11% of them trucks, projected to reach 5,106 by 2040. The structure is 416 ft (126.8 m) long and 35 ft wide. If it were closed, the detour would be 18 mi (29 km).

CarriesUS 50 Ml
CrossesHuerfano River
LocationJust E. of Intersct to Bo
RouteU.S. Route 50B
Coordinates38.22556, -104.26145
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJanuary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans5
Design loadH 20
Structure length416 ft (126.8 m)
Longest span80 ft (24.4 m)
Deck width35 ft (10.7 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,600 (2020)
Projected traffic5,106 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed18 mi (29 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 50 Ml over Huerfano River built?

It was built in 1921, making it 104 years old in 2025. It was reconstructed in 1948.

What condition is US 50 Ml over Huerfano River 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 January 2024.

How much traffic does US 50 Ml over Huerfano River carry?

About 4,600 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is US 50 Ml over Huerfano River?

The structure is 416 ft (126.8 m) long with a longest span of 80 ft (24.4 m) and a deck 35 ft wide.

Who owns US 50 Ml over Huerfano River?

It is owned by the State Highway Agency.