Structure 21508000001037 · Mesa County, CO

Fdr 814 over W Divide CR

Carries Fdr 814 over W Divide CR, Cayton Guard Station.

Overall conditionFair

Set by its lowest-rated component: Substructure at 6 of 9.

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT30 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

30 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.

Built196561 years old
Length29.9 ft9.1 m
Daily traffic10counted 2005
Last inspectedJuly 2023every 24 months

Location

StateColorado
CountyMesa
LocationCayton Guard Station
CarriesFdr 814
CrossesW Divide CR
Coordinates39.31167, -107.56333

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length29.9 ft (9.1 m)
Max Span28.5 ft (8.7 m)
Deck Width15.1 ft (4.6 m)
Deck Area41.9 sq m
Main Spans1
Year Built1965

Traffic

Avg Daily Traffic10 (2005)
Lanes On Bridge1

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical4 — Foundations need monitoring
Structure Number021508000001037

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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