Structure B-27-A · Phillips County, CO

US 6 Ml over Frenchman Creek

Carries US 6 Ml over Frenchman Creek, 0.6 Mi E Of Jct US 385.

Overall conditionPoor

Set by its lowest-rated component: Substructure at 4 of 9.

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating4/9 · Poor
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT163 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 4/9 · sets the rating

163 ft end to end, longest span 23 ft: about 2 semi-trucks nose to tail. Lengths and the semi-truck 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.

Built193492 years old
Length162.7 ft49.6 m
Daily traffic1,500counted 2020
Last inspectedMay 2023every 24 months

Location

StateColorado
CountyPhillips
Location0.6 Mi E Of Jct US 385
CarriesUS 6 Ml
CrossesFrenchman Creek
Coordinates40.58567, -102.29016

Physical Characteristics

MaterialWood or Timber
DesignStringer/Multi-beam
Total Length162.7 ft (49.6 m)
Max Span23.0 ft (7 m)
Deck Width29.9 ft (9.1 m)
Deck Area451.4 sq m
Main Spans7
Year Built1934

Traffic

Avg Daily Traffic1,500 (2020)
Truck Traffic20%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is possibly eligible (requires evaluation)
Scour Critical3 — Scour critical
Structure NumberB-27-A

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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