US Bridges

US 50 Ml over Graveyard Creek

Fair

Bent County, Colorado · 11 MI W of Lamar · Structure no. L-25-C

Built
1923
102 years old, rebuilt 1937
Condition
Fair
inspected August 2024
Type
Tee Beam
Concrete
Length
45 ft
1 main span
Daily traffic
2,200
2020 count
Owner
State
State Highway Agency

About this bridge

US 50 Ml over Graveyard Creek is a concrete tee beam carrying US 50 Ml over Graveyard Creek in Bent County, Colorado. It was built in 1923 and reconstructed in 1937, so it is 102 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 2,200 vehicles a day, roughly 20% of them trucks, projected to reach 2,244 by 2040. The structure is 45 ft (13.8 m) long and 33 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesUS 50 Ml
CrossesGraveyard Creek
Location11 MI W of Lamar
RouteU.S. Route 50B
Coordinates38.11428, -102.80333
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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
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 inspectionAugust 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 rating39 US tons
Inventory rating23 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans1
Design loadH 15
Structure length45 ft (13.8 m)
Longest span42 ft (12.8 m)
Deck width33 ft (10.2 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,200 (2020)
Projected traffic2,244 by 2040
Trucks20%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was US 50 Ml over Graveyard Creek built?

It was built in 1923, making it 102 years old in 2025. It was reconstructed in 1937.

What condition is US 50 Ml over Graveyard 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 August 2024.

How much traffic does US 50 Ml over Graveyard Creek carry?

About 2,200 vehicles per day (2020 count), of which roughly 20% are trucks.

How long is US 50 Ml over Graveyard Creek?

The structure is 45 ft (13.8 m) long with a longest span of 42 ft (12.8 m) and a deck 33 ft wide.

Who owns US 50 Ml over Graveyard Creek?

It is owned by the State Highway Agency.