Structure 27903 · Montgomery County, PA

Rittenhouse Road over Skippack Creek

Carries Rittenhouse Road over Skippack Creek, 0.6 Mi W Sr63 Adc 3143-c1.

Overall conditionFair

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

How ratings work
Superstructure6/9 · Satisfactory
Substructuresets the rating5/9 · Fair
Channelnot part of overall4/9 · Poor
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
CAR · 15 FT104 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck not ratedSuperstructure 6/9Substructure 5/9 · sets the rating

104 ft end to end, longest span 30 ft. 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 deck arch.

Built1908118 years old
Length104.0 ft31.7 m
Daily traffic2,965counted 2019
Last inspectedApril 2024every 24 months

Location

StatePennsylvania
CountyMontgomery
Location0.6 Mi W Sr63 Adc 3143-c1
CarriesRittenhouse Road
CrossesSkippack Creek
Coordinates40.24809, -75.35957

Physical Characteristics

MaterialMasonry
DesignArch - Deck
Total Length104.0 ft (31.7 m)
Max Span29.9 ft (9.1 m)
Deck Width19.0 ft (5.8 m)
Deck Area183.9 sq m
Main Spans3
Year Built1908

Traffic

Avg Daily Traffic2,965 (2019)
Truck Traffic1%
Lanes On Bridge1

Inspection & Ownership

Last InspectionApril 2024
Inspection FrequencyEvery 24 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000027903

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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