US Bridges

US 160 Bypass over Purgatoire River

Good

Las Animas County, Colorado · 0.5 MI E of I 25 in Trini · Structure no. P-19-BC

Built
1988
37 years old
Condition
Good
inspected September 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete Continuous
Length
378 ft
4 main spans
Daily traffic
3,700
2020 count
Owner
State
State Highway Agency

About this bridge

US 160 Bypass over Purgatoire River is a prestressed concrete continuous stringer/multi-beam or girder carrying US 160 Bypass over Purgatoire River in Las Animas County, Colorado. It was built in 1988, so it is 37 years old, younger 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 3,700 vehicles a day, roughly 6% of them trucks, projected to reach 4,144 by 2040. The structure is 378 ft (115.1 m) long and 43 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

CarriesUS 160 Bypass
CrossesPurgatoire River
Location0.5 MI E of I 25 in Trini
RouteU.S. Route 160C
Coordinates37.18417, -104.48935
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating83.4 US tons
Inventory rating43 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length378 ft (115.1 m)
Longest span94 ft (28.7 m)
Deck width43 ft (13 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,700 (2020)
Projected traffic4,144 by 2040
Trucks6%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 160 Bypass over Purgatoire River built?

It was built in 1988, making it 37 years old in 2025.

What condition is US 160 Bypass over Purgatoire River 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 September 2024.

How much traffic does US 160 Bypass over Purgatoire River carry?

About 3,700 vehicles per day (2020 count), of which roughly 6% are trucks.

How long is US 160 Bypass over Purgatoire River?

The structure is 378 ft (115.1 m) long with a longest span of 94 ft (28.7 m) and a deck 43 ft wide.

Who owns US 160 Bypass over Purgatoire River?

It is owned by the State Highway Agency.