Structure 27948 · Montgomery County, PA

Valley Green Road over Wissahickon Creek

Carries Valley Green Road over Wissahickon Creek, 1/4 Mi W Beth Pk 3369-e2.

Overall conditionPoor

Set by its lowest-rated component: Deck at 3 of 9.

How ratings work
Decksets the rating3/9 · Serious
Superstructure4/9 · Poor
Substructure5/9 · Fair
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT183 FT OVERALL25 FT0ELEVATION · LENGTHS TO SCALE
Deck 3/9 · sets the ratingSuperstructure 4/9Substructure 5/9

183 ft end to end, longest span 57 ft: about 3 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 through truss.

Built1884rebuilt 1986
Length183.1 ft55.8 m
Daily traffic5,864counted 2013
Last inspectedMay 2024every 12 months

Location

StatePennsylvania
CountyMontgomery
Location1/4 Mi W Beth Pk 3369-e2
CarriesValley Green Road
CrossesWissahickon Creek
Coordinates40.11290, -75.21921

Physical Characteristics

MaterialSteel
DesignTruss - Thru
Total Length183.1 ft (55.8 m)
Max Span57.1 ft (17.4 m)
Deck Width19.4 ft (5.9 m)
Deck Area329.2 sq m
Main Spans3
Year Built1884 (reconstructed 1986)

Traffic

Avg Daily Traffic5,864 (2013)
Lanes On Bridge2

Inspection & Ownership

Last InspectionMay 2024
Inspection FrequencyEvery 12 months
OwnerCounty Highway Agency
Historical SignificanceBridge is eligible for the National Register
Scour Critical3 — Scour critical
Structure Number000000000027948

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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