Structure CAS CASRKPWY-1 · Douglas County, CO

NB I25 Ml over N Meadows Parkway

Carries NB I25 Ml over N Meadows Parkway, N Of Castle Rock.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 8 of 9.

How ratings work
Decksets the rating8/9 · Very Good
Superstructuresets the rating8/9 · Very Good
Substructuresets the rating8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT107 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 8/9Substructure 8/9

107 ft end to end. 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 multi-beam bridge.

Built201511 years old
Length107.0 ft32.6 m
Daily traffic64,883counted 2021
Last inspectedMarch 2025every 24 months

Location

StateColorado
CountyDouglas
LocationN Of Castle Rock
CarriesNB I25 Ml
CrossesN Meadows Parkway
Coordinates39.42422, -104.87577

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length107.0 ft (32.6 m)
Max Span103.3 ft (31.5 m)
Deck Width91.5 ft (27.9 m)
Deck Area909.5 sq m
Main Spans1
Year Built2015

Traffic

Avg Daily Traffic64,883 (2021)
Truck Traffic9%
Lanes On Bridge5
Lanes Under Bridge3

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-1

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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