US Bridges

US 350 Ml over Vanbremer Arroyo

Fair

Las Animas County, Colorado · 2.1 Miles NE of Model · Structure no. O-20-K

Built
1980
45 years old
Condition
Fair
inspected December 2024
Type
Culvert
Concrete
Length
44 ft
3 main spans
Daily traffic
710
2020 count
Owner
State
State Highway Agency

About this bridge

US 350 Ml over Vanbremer Arroyo is a concrete culvert carrying US 350 Ml over Vanbremer Arroyo in Las Animas County, Colorado. It was built in 1980, so it is 45 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 6 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 710 vehicles a day, roughly 11% of them trucks, projected to reach 973 by 2040. The structure is 44 ft (13.3 m) long and 50 ft wide. If it were closed, the detour would be 123.7 mi (199 km).

CarriesUS 350 Ml
CrossesVanbremer Arroyo
Location2.1 Miles NE of Model
RouteU.S. Route 350A
Coordinates37.40256, -104.23134
Functional classRural Minor Arterial

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Culvert6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionDecember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating93.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans3
Design loadHS 20
Structure length44 ft (13.3 m)
Longest span16 ft (4.9 m)
Deck width50 ft (15.2 m)
Roadway width35 ft (10.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic710 (2020)
Projected traffic973 by 2040
Trucks11%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed123.7 mi (199 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 US 350 Ml over Vanbremer Arroyo built?

It was built in 1980, making it 45 years old in 2025.

What condition is US 350 Ml over Vanbremer Arroyo 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 December 2024.

How much traffic does US 350 Ml over Vanbremer Arroyo carry?

About 710 vehicles per day (2020 count), of which roughly 11% are trucks.

How long is US 350 Ml over Vanbremer Arroyo?

The structure is 44 ft (13.3 m) long with a longest span of 16 ft (4.9 m) and a deck 50 ft wide.

Who owns US 350 Ml over Vanbremer Arroyo?

It is owned by the State Highway Agency.