Structure 20903000014194 · Conejos County, CO

Fsr 128.1b over Elk Creek

Carries Fsr 128.1b over Elk Creek, 0.15 Mi From Co SH 17.

Overall conditionGood

Set by its lowest-rated component: Deck at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructure8/9 · Very Good
Substructure8/9 · Very Good
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT61 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9 · sets the ratingSuperstructure 8/9Substructure 8/9

61 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.

Built201115 years old
Length61.4 ft18.7 m
Daily traffic129counted 2003
Last inspectedJuly 2023every 24 months

Location

StateColorado
CountyConejos
Location0.15 Mi From Co SH 17
CarriesFsr 128.1b
CrossesElk Creek
Coordinates37.12370, -106.36925

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length61.4 ft (18.7 m)
Max Span58.4 ft (17.8 m)
Deck Width17.4 ft (5.3 m)
Deck Area99.1 sq m
Main Spans1
Year Built2011

Traffic

Avg Daily Traffic129 (2003)
Truck Traffic4%
Lanes On Bridge1

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerU.S. Forest Service
Historical SignificanceHistorical significance is not determined
Scour Critical5 — Stable for scour
Structure Number020903000014194

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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