Structure E-17-EP · Adams County, CO

Sh6 Ditch Rider RD over Burlington Canal SR

Carries Sh6 Ditch Rider RD over Burlington Canal SR, 0.7 Mi N Of Jct SH 224.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 1 of 9.

How ratings work
Deck4/9 · Poor
Superstructure4/9 · Poor
Substructuresets the rating1/9 · Imminent Failure
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT77 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 4/9Superstructure 4/9Substructure 1/9 · sets the rating

77 ft end to end, longest span 19 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 multi-beam bridge.

Built194878 years old
Length77.4 ft23.6 m
Daily traffic27,925counted 2024
Last inspectedMarch 2025every 12 months

Location

StateColorado
CountyAdams
Location0.7 Mi N Of Jct SH 224
CarriesSh6 Ditch Rider RD
CrossesBurlington Canal SR
Coordinates39.84149, -104.92451

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length77.4 ft (23.6 m)
Max Span19.0 ft (5.8 m)
Deck Width25.9 ft (7.9 m)
Deck Area186.4 sq m
Main Spans4
Year Built1948

Traffic

Avg Daily Traffic27,925 (2024)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMarch 2025
Inspection FrequencyEvery 12 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberE-17-EP

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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