Structure CZS · Converse County, WY

I-25 Nbl over North Platte River

Carries I-25 Nbl over North Platte River, Glendo - Douglas.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT636 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 6/9Substructure 6/9

636 ft end to end, longest span 137 ft: about 1.8 football fields. 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.

Built197254 years old
Length636.2 ft193.9 m
Daily traffic3,563counted 2024
Last inspectedJanuary 2025every 24 months

Location

StateWyoming
CountyConverse
LocationGlendo - Douglas
CarriesI-25 Nbl
CrossesNorth Platte River
Coordinates42.64588, -105.19038

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length636.2 ft (193.9 m)
Max Span137.1 ft (41.8 m)
Deck Width44.6 ft (13.6 m)
Deck Area2637.0 sq m
Main Spans5
Year Built1972

Traffic

Avg Daily Traffic3,563 (2024)
Truck Traffic24%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2025
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Scour Critical8 — Stable, low risk
Structure NumberCZS

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.

Nearby Bridges