Structure THN-YRK150-LD · Adams County, CO

York Street over Local Drainage

Carries York Street over Local Drainage, Just S Of 150th Avenue.

Overall conditionFair

Set by its lowest-rated component: Culvert at 6 of 9.

How ratings work
Culvertsets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT32 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 32 ft across with 2 openings. 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, so those are drawn as typical for a culvert.

Built200224 years old
Length32.2 ft9.8 m
Daily traffic3,806counted 2021
Last inspectedJanuary 2024every 24 months

Location

StateColorado
CountyAdams
LocationJust S Of 150th Avenue
CarriesYork Street
CrossesLocal Drainage
Coordinates39.96744, -104.95939

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length32.2 ft (9.8 m)
Max Span15.7 ft (4.8 m)
Deck Width229.7 ft (70 m)
Deck Area686 sq m
Main Spans2
Year Built2002

Traffic

Avg Daily Traffic3,806 (2021)
Lanes On Bridge4

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberTHN-YRK150-LD

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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