Structure D-04-BOST-041 · Denver County, CO

Quebec Street over E Airlawn Road

Carries Quebec Street over E Airlawn Road, 0.2 Mi South Of I70.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructuresets the rating5/9 · Fair
Substructuresets the rating5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT166 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 5/9

166 ft end to end, longest span 68 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck 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 multi-beam bridge.

Built1961rebuilt 1971
Length166.3 ft50.7 m
Daily traffic62,614counted 2021
Last inspectedNovember 2024every 24 months

Location

StateColorado
CountyDenver
Location0.2 Mi South Of I70
CarriesQuebec Street
CrossesE Airlawn Road
Coordinates39.77603, -104.90366

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length166.3 ft (50.7 m)
Max Span67.6 ft (20.6 m)
Deck Width90.6 ft (27.6 m)
Deck Area1399.3 sq m
Main Spans3
Year Built1961 (reconstructed 1971)

Traffic

Avg Daily Traffic62,614 (2021)
Truck Traffic11%
Lanes On Bridge6
Lanes Under Bridge2

Inspection & Ownership

Last InspectionNovember 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberD-04-BOST-041

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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