Structure 7706 · Dona Ana County, NM

13-b057 over East Side Canal

Carries 13-b057 over East Side Canal, .95 M W Nm-478 @ Mp 15.98.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT32 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 6/9 · sets the rating

32 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 tee-beam bridge.

Built195670 years old
Length32.2 ft9.8 m
Daily traffic364counted 2023
Last inspectedJanuary 2023every 24 months

Location

StateNew Mexico
CountyDona Ana
Location.95 M W Nm-478 @ Mp 15.98
Carries13-b057
CrossesEast Side Canal
Coordinates32.20752, -106.73985

Physical Characteristics

MaterialPrestressed Concrete
DesignTee Beam
Total Length32.2 ft (9.8 m)
Max Span28.9 ft (8.8 m)
Deck Width30.5 ft (9.3 m)
Deck Area91.1 sq m
Main Spans1
Year Built1956

Traffic

Avg Daily Traffic364 (2023)
Truck Traffic11%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJanuary 2023
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000007706

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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