Structure ABZ · Laramie County, WY

La Cnty RD 228-2 over I-25

Carries La Cnty RD 228-2 over I-25, Cheyenne - Chugwater.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructuresets the rating4/9 · Poor
Substructure6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT290 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 4/9 · sets the ratingSubstructure 6/9

290 ft end to end, longest span 95 ft: about 4 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.

Built196759 years old
Length290.0 ft88.4 m
Daily traffic81counted 2024
Last inspectedMarch 2024every 24 months

Location

StateWyoming
CountyLaramie
LocationCheyenne - Chugwater
CarriesLa Cnty RD 228-2
CrossesI-25
Coordinates41.40771, -104.87481

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length290.0 ft (88.4 m)
Max Span95.5 ft (29.1 m)
Deck Width32.8 ft (10 m)
Deck Area884 sq m
Main Spans3
Year Built1967

Traffic

Avg Daily Traffic81 (2024)
Truck Traffic19%
Lanes On Bridge2
Lanes Under Bridge4

Inspection & Ownership

Last InspectionMarch 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour CriticalNot applicable
Structure NumberABZ

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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