Structure RGD0MP-00.10A · Rio Grande County, CO

Masonic Park Dr. over Rio Grande River

Carries Masonic Park Dr. over Rio Grande River, 3.5 Mi NW Of South Fork.

Overall conditionFair

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

How ratings work
Decksets the rating5/9 · Fair
Superstructure9/9 · Excellent
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT172 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9 · sets the ratingSuperstructure 9/9Substructure 7/9

172 ft end to end, longest span 65 ft: 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 or the layout of the shorter spans, so those are drawn as typical for a multi-beam bridge.

Built199333 years old
Length171.9 ft52.4 m
Daily traffic112counted 2022
Last inspectedDecember 2024every 24 months

Location

StateColorado
CountyRio Grande
Location3.5 Mi NW Of South Fork
CarriesMasonic Park Dr.
CrossesRio Grande River
Coordinates37.70077, -106.68562

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length171.9 ft (52.4 m)
Max Span64.6 ft (19.7 m)
Deck Width24.6 ft (7.5 m)
Deck Area393 sq m
Main Spans3
Year Built1993

Traffic

Avg Daily Traffic112 (2022)
Lanes On Bridge2

Inspection & Ownership

Last InspectionDecember 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure NumberRGD0MP-00.10A

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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