Structure BA13-13-30.2-7 · Baca County, CO

County Road 12 over Plum Creek

Carries County Road 12 over Plum Creek, .8 Mi S Of CR Jj.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT50 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 5/9 · sets the rating

50 ft end to end, longest span 21 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.

Built1930rebuilt 1950
Length49.5 ft15.1 m
Daily traffic21counted 2022
Last inspectedApril 2024every 24 months

Location

StateColorado
CountyBaca
Location.8 Mi S Of CR Jj
CarriesCounty Road 12
CrossesPlum Creek
Coordinates37.44346, -102.85616

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length49.5 ft (15.1 m)
Max Span21.3 ft (6.5 m)
Deck Width24.0 ft (7.3 m)
Deck Area110.2 sq m
Main Spans2
Year Built1930 (reconstructed 1950)

Traffic

Avg Daily Traffic21 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure NumberBA13-13-30.2-7

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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