Structure F-19-AW · Arapahoe County, CO

I 70 Ml Ebnd over Little Comanche Creek

Carries I 70 Ml Ebnd over Little Comanche Creek, 0.6 Mi E Of Jct Strasburg.

Overall conditionFair

Set by its lowest-rated component: Deck and Substructure at 5 of 9.

How ratings work
Decksets the rating5/9 · Fair
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT95 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 6/9Substructure 5/9 · sets the rating

95 ft end to end, longest span 30 ft. 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 tee-beam bridge.

Built196264 years old
Length95.1 ft29 m
Daily traffic7,500counted 2020
Last inspectedApril 2023every 24 months

Location

StateColorado
CountyArapahoe
Location0.6 Mi E Of Jct Strasburg
CarriesI 70 Ml Ebnd
CrossesLittle Comanche Creek
Coordinates39.73330, -104.31461

Physical Characteristics

MaterialConcrete
DesignTee Beam
Total Length95.1 ft (29 m)
Max Span29.5 ft (9 m)
Deck Width42.0 ft (12.8 m)
Deck Area371.2 sq m
Main Spans3
Year Built1962

Traffic

Avg Daily Traffic7,500 (2020)
Truck Traffic30%
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure NumberF-19-AW

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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