Structure 27517 · Montgomery County, PA

Traffic Route 663 over Macoby Cr/2805b6

Carries Traffic Route 663 over Macoby Cr/2805b6, 1mi.to Geryville.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT68 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 7/9Substructure 6/9 · sets the rating

68 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 box-beam bridge.

Built197155 years old
Length67.9 ft20.7 m
Daily traffic13,898counted 2024
Last inspectedJuly 2023every 24 months

Location

StatePennsylvania
CountyMontgomery
Location1mi.to Geryville
CarriesTraffic Route 663
CrossesMacoby Cr/2805b6
Coordinates40.40327, -75.49145

Physical Characteristics

MaterialPrestressed Concrete
DesignBox Beam - Multiple
Total Length67.9 ft (20.7 m)
Max Span67.9 ft (20.7 m)
Deck Width91.9 ft (28 m)
Deck Area579.6 sq m
Main Spans1
Year Built1971

Traffic

Avg Daily Traffic13,898 (2024)
Truck Traffic8%
Lanes On Bridge4

Inspection & Ownership

Last InspectionJuly 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical4 — Foundations need monitoring
Structure Number000000000027517

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.

Nearby Bridges