US Bridges

US 160 Business Rt over Mancos River

PoorPosted for load

Montezuma County, Colorado · Mancos · Structure no. O-03-J

Built
1936
89 years old
Condition
Poor
inspected May 2023
Type
Truss - Thru
Steel
Length
84 ft
1 main span
Daily traffic
530
2020 count
Owner
State
State Highway Agency

About this bridge

US 160 Business Rt over Mancos River is a steel truss - thru carrying US 160 Business Rt over Mancos River in Montezuma County, Colorado. It was built in 1936, so it is 89 years old, older than the Colorado average of 42.2 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 530 vehicles a day, roughly 7% of them trucks, projected to reach 583 by 2040. The structure is 84 ft (25.6 m) long and 38 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

CarriesUS 160 Business Rt
CrossesMancos River
LocationMancos
RouteU.S. Route 160D
Coordinates37.34486, -108.28681
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2023
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating30.8 US tons
Inventory rating18.5 US tons

Structure

Structure typeTruss - Thru
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length84 ft (25.6 m)
Longest span80 ft (24.4 m)
Deck width38 ft (11.6 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic530 (2020)
Projected traffic583 by 2040
Trucks7%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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 160 Business Rt over Mancos River built?

It was built in 1936, making it 89 years old in 2025.

What condition is US 160 Business Rt over Mancos River in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2023.

How much traffic does US 160 Business Rt over Mancos River carry?

About 530 vehicles per day (2020 count), of which roughly 7% are trucks.

How long is US 160 Business Rt over Mancos River?

The structure is 84 ft (25.6 m) long with a longest span of 80 ft (24.4 m) and a deck 38 ft wide.

Who owns US 160 Business Rt over Mancos River?

It is owned by the State Highway Agency.