Structure CAS CASRKPWY-6 · Douglas County, CO

SB US 85 Off Ramp over Terrain

Carries SB US 85 Off Ramp over Terrain, Sbnd Off Ramp D.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT718 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 8/9Substructure 8/9

718 ft end to end, longest span 109 ft: about 2.0 football fields. 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.

Built201412 years old
Length717.5 ft218.7 m
Daily traffic2,540counted 2022
Last inspectedMarch 2025every 24 months

Location

StateColorado
CountyDouglas
LocationSbnd Off Ramp D
CarriesSB US 85 Off Ramp
CrossesTerrain
Coordinates39.42040, -104.88903

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length717.5 ft (218.7 m)
Max Span109.3 ft (33.3 m)
Deck Width32.2 ft (9.8 m)
Deck Area2143.3 sq m
Main Spans7
Year Built2014

Traffic

Avg Daily Traffic2,540 (2022)
Truck Traffic3%
Lanes On Bridge1

Inspection & Ownership

Last InspectionMarch 2025
Inspection FrequencyEvery 24 months
OwnerTown/Township Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberCAS CASRKPWY-6

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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