Structure P-06-AN · La Plata County, CO

US 160 EB Ml over Wildlife Crossing/drain

Carries US 160 EB Ml over Wildlife Crossing/drain, 23.8 Mi E Of Jct US 550.

Overall conditionGood

Set by its lowest-rated component: Substructure at 7 of 9.

How ratings work
Deck8/9 · Very Good
Superstructure8/9 · Very Good
Substructuresets the rating7/9 · Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT40 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 7/9 · sets the rating

40 ft end to end. Lengths and the car on the deck are drawn to the same scale. Each part is colored by its latest inspection rating. The inventory records lengths but not heights or the layout of the shorter spans, so those are drawn as typical for a deck arch.

Built201511 years old
Length39.7 ft12.1 m
Daily traffic5,000counted 2020
Last inspectedOctober 2023every 24 months

Location

StateColorado
CountyLa Plata
Location23.8 Mi E Of Jct US 550
CarriesUS 160 EB Ml
CrossesWildlife Crossing/drain
Coordinates37.22643, -107.68840

Physical Characteristics

MaterialConcrete
DesignArch - Deck
Total Length39.7 ft (12.1 m)
Max Span37.1 ft (11.3 m)
Deck Width46.6 ft (14.2 m)
Deck Area171.8 sq m
Main Spans1
Year Built2015

Traffic

Avg Daily Traffic5,000 (2020)
Truck Traffic5%
Lanes On Bridge1

Inspection & Ownership

Last InspectionOctober 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical9 — Foundation above flood level
Structure NumberP-06-AN

How Bridge Ratings Work

Inspectors rate each major part of a bridge (the deck you drive on, the superstructure of beams that holds it up, and the substructure of piers and abutments beneath) on a 0–9 scale. A bridge's overall condition is its lowest of those ratings, so one deteriorated component makes the whole bridge "poor."

0Failed
1Imminent failure
2Critical
3Serious
4Poor
5Fair
6Satisfactory
7Good
8Very good
9Excellent
Good · lowest component 7–9
Fair · lowest component 5–6
Poor · lowest component 0–4

A poor rating is not a closure. It means the bridge is flagged for priority repair or replacement; bridges judged unsafe are closed or posted with weight limits. The waterway (channel) rating is reported, but it does not count toward the overall classification.

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