Structure AUR15.1-N.0 · Arapahoe County, CO

Tower Road over Local Drainage

Carries Tower Road over Local Drainage, 0.1 Mi N Of Amherst Avenu.

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 FT46 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 6/9

A culvert 46 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.

Built198640 years old
Length45.9 ft14 m
Daily traffic20,232counted 2021
Last inspectedNovember 2021every 48 months

Location

StateColorado
CountyArapahoe
Location0.1 Mi N Of Amherst Avenu
CarriesTower Road
CrossesLocal Drainage
Coordinates39.66714, -104.77216

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length45.9 ft (14 m)
Max Span22.3 ft (6.8 m)
Deck Width238.2 ft (72.6 m)
Deck Area1016.4 sq m
Main Spans2
Year Built1986

Traffic

Avg Daily Traffic20,232 (2021)
Truck Traffic6%
Lanes On Bridge6

Inspection & Ownership

Last InspectionNovember 2021
Inspection FrequencyEvery 48 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberAUR15.1-N.0

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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