Structure 9737 · Dona Ana County, NM

Sonoma Ranch Blvd. over Alameda Arroyo

Carries Sonoma Ranch Blvd. over Alameda Arroyo, 2.8 M N Intsec E. Lohman.

Overall conditionFair

Set by its lowest-rated component: Culvert at 5 of 9.

How ratings work
Culvertsets the rating5/9 · Fair
Channelnot part of overall5/9 · Fair
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT176 FT ACROSS25 FT0ELEVATION · LENGTHS TO SCALE
Culvert 5/9

A culvert 176 ft across with 7 openings: about 2 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, so those are drawn as typical for a culvert.

Built200620 years old
Length175.9 ft53.6 m
Daily traffic13,663counted 2023
Last inspectedApril 2024every 24 months

Location

StateNew Mexico
CountyDona Ana
Location2.8 M N Intsec E. Lohman
CarriesSonoma Ranch Blvd.
CrossesAlameda Arroyo
Coordinates32.35864, -106.73989

Physical Characteristics

MaterialSteel
DesignCulvert
Total Length175.9 ft (53.6 m)
Max Span5.9 ft (1.8 m)
Deck Area632.5 sq m
Main Spans7
Year Built2006

Traffic

Avg Daily Traffic13,663 (2023)
Truck Traffic13%
Lanes On Bridge4

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCity/Municipal Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000009737

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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