Structure PR13-12-308-41A · Prowers County, CO

County Road 13 over Arkansas River

Carries County Road 13 over Arkansas River, 5.4 Mi E Of Lamar.

Overall conditionFair

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

How ratings work
Deck8/9 · Very Good
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT369 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 8/9Superstructure 6/9 · sets the ratingSubstructure 7/9

369 ft end to end, longest span 79 ft: about 5 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.

Built1995rebuilt 2023
Length368.8 ft112.4 m
Daily traffic169counted 2022
Last inspectedJune 2023every 24 months

Location

StateColorado
CountyProwers
Location5.4 Mi E Of Lamar
CarriesCounty Road 13
CrossesArkansas River
Coordinates38.09653, -102.51951

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length368.8 ft (112.4 m)
Max Span79.1 ft (24.1 m)
Deck Width32.2 ft (9.8 m)
Deck Area1101.5 sq m
Main Spans5
Year Built1995 (reconstructed 2023)

Traffic

Avg Daily Traffic169 (2022)
Truck Traffic2%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJune 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberPR13-12-308-41A

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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