Structure DAPUSMWPT000015 · Orange County, NY

Parking Lot Ramp over Alley At Thayer Hall

Carries Parking Lot Ramp over Alley At Thayer Hall, NW Corner Of Thayer Road.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructuresets the rating5/9 · Fair
Substructure7/9 · Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT41 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 5/9 · sets the ratingSubstructure 7/9

41 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 girder bridge.

Built1950rebuilt 1997
Length41.3 ft12.6 m
Daily traffic200counted 2021
Last inspectedSeptember 2023every 24 months

Location

StateNew York
CountyOrange
LocationNW Corner Of Thayer Road
CarriesParking Lot Ramp
CrossesAlley At Thayer Hall
Coordinates41.39134, -73.95459

Physical Characteristics

MaterialSteel
DesignGirder and Floorbeam
Total Length41.3 ft (12.6 m)
Max Span33.1 ft (10.1 m)
Deck Width28.9 ft (8.8 m)
Deck Area110.9 sq m
Main Spans1
Year Built1950 (reconstructed 1997)

Traffic

Avg Daily Traffic200 (2021)
Lanes On Bridge2
Lanes Under Bridge1

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerArmy
Historical SignificanceBridge is not eligible for the National Register
Scour CriticalNot applicable
Structure NumberDAPUSMWPT000015

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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