Structure COMC-27-0.1-01 · Adams County, CO

81st Avenue over Trib To Second Creek

Carries 81st Avenue over Trib To Second Creek, 0.1 Mi W Of Tower RD.

Overall conditionGood

Set by its lowest-rated component: Culvert at 8 of 9.

How ratings work
Culvertsets the rating8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT56 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 8/9

A culvert 56 ft across with 3 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.

Built199531 years old
Length56.4 ft17.2 m
Daily traffic3,842counted 2021
Last inspectedDecember 2023every 24 months

Location

StateColorado
CountyAdams
Location0.1 Mi W Of Tower RD
Carries81st Avenue
CrossesTrib To Second Creek
Coordinates39.84378, -104.77397

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length56.4 ft (17.2 m)
Max Span18.0 ft (5.5 m)
Deck Width80.1 ft (24.4 m)
Deck Area419.7 sq m
Main Spans3
Year Built1995

Traffic

Avg Daily Traffic3,842 (2021)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2023
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberCOMC-27-0.1-01

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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