Structure 8655 · Bernalillo County, NM

Nm-528 WB over North Diversion Channel

Carries Nm-528 WB over North Diversion Channel, 1.3 M W Jct I-25/ALAMEDA.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT106 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

106 ft end to end. 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built198739 years old
Length106.0 ft32.3 m
Daily traffic25,771counted 2022
Last inspectedMay 2024every 24 months

Location

StateNew Mexico
CountyBernalillo
Location1.3 M W Jct I-25/ALAMEDA
CarriesNm-528 WB
CrossesNorth Diversion Channel
Coordinates35.18481, -106.60472

Physical Characteristics

MaterialPrestressed Concrete
DesignStringer/Multi-beam
Total Length106.0 ft (32.3 m)
Max Span103.0 ft (31.4 m)
Deck Width43.0 ft (13.1 m)
Deck Area423.1 sq m
Main Spans1
Year Built1987

Traffic

Avg Daily Traffic25,771 (2022)
Truck Traffic8%
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000008655

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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