Structure 9960 · Bernalillo County, NM

Iu-2226 over EB & SB Frontage Roads

Carries Iu-2226 over EB & SB Frontage Roads, Big I Interchange SW Sect.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT599 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

599 ft end to end, longest span 174 ft: about 1.7 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 segmental box-girder bridge.

Built200224 years old
Length599.1 ft182.6 m
Daily traffic14,821counted 2023
Last inspectedOctober 2024every 24 months

Location

StateNew Mexico
CountyBernalillo
LocationBig I Interchange SW Sect
CarriesIu-2226
CrossesEB & SB Frontage Roads
Coordinates35.10387, -106.63231

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignSegmental Box Girder
Total Length599.1 ft (182.6 m)
Max Span173.9 ft (53 m)
Deck Width32.5 ft (9.9 m)
Deck Area1807.7 sq m
Main Spans4
Year Built2002

Traffic

Avg Daily Traffic14,821 (2023)
Truck Traffic14%
Lanes On Bridge1
Lanes Under Bridge5

Inspection & Ownership

Last InspectionOctober 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure Number000000000009960

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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