Structure LOG27-12.7-49-A · Logan County, CO

County Road 27 over Pawnee Ditch

Carries County Road 27 over Pawnee Ditch, 0.7 Mi North Of Co. RD 12.

Overall conditionGood

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

How ratings work
Culvertsets the rating7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT39 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 7/9

A culvert 39 ft across. 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, so those are drawn as typical for a culvert.

Built200917 years old
Length38.7 ft11.8 m
Daily traffic34counted 2023
Last inspectedJanuary 2024every 24 months

Location

StateColorado
CountyLogan
Location0.7 Mi North Of Co. RD 12
CarriesCounty Road 27
CrossesPawnee Ditch
Coordinates40.51902, -103.33277

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length38.7 ft (11.8 m)
Max Span38.7 ft (11.8 m)
Deck Width22.0 ft (6.7 m)
Deck Area79.1 sq m
Main Spans1
Year Built2009

Traffic

Avg Daily Traffic34 (2023)
Truck Traffic48%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberLOG27-12.7-49-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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