US Bridges

US 550 Nbnd over Wildlife Crossing

Good

La Plata County, Colorado · 2.3 MI S of US 160 · Structure no. P-05-AS

Built
2022
3 years old
Condition
Good
inspected May 2024
Type
Arch - Deck
Steel
Length
38 ft
1 main span
Daily traffic
—
Owner
State
State Highway Agency

About this bridge

US 550 Nbnd over Wildlife Crossing is a steel arch - deck carrying US 550 Nbnd over Wildlife Crossing in La Plata County, Colorado. It was built in 2022, so it is 3 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

No traffic count is recorded. The structure is 38 ft (11.6 m) long and 58 ft wide.

CarriesUS 550 Nbnd
CrossesWildlife Crossing
Location2.3 MI S of US 160
RouteU.S. Route 550A
Coordinates37.19335, -107.84976
Functional classRural Principal Arterial - Other

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.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation8: Equal to present desirable criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating40 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialSteel
DeckNot applicable
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span33 ft (10.2 m)
Deck width58 ft (17.6 m)
Roadway width52 ft (15.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic—
Projected traffic—
Trucks0%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway
CrossesOther
Detour if closed—
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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was US 550 Nbnd over Wildlife Crossing built?

It was built in 2022, making it 3 years old in 2025.

What condition is US 550 Nbnd over Wildlife Crossing 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 May 2024.

How much traffic does US 550 Nbnd over Wildlife Crossing carry?

No traffic count is recorded for this structure.

How long is US 550 Nbnd over Wildlife Crossing?

The structure is 38 ft (11.6 m) long with a longest span of 33 ft (10.2 m) and a deck 58 ft wide.

Who owns US 550 Nbnd over Wildlife Crossing?

It is owned by the State Highway Agency.