Structure 20784 · Lackawanna County, PA

SR 3020 Linden ST over Lack Rr And Lack River

Carries SR 3020 Linden ST over Lack Rr And Lack River, Scranton Cty Linden ST.

Overall conditionPoor

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

How ratings work
Deck5/9 · Fair
Superstructure5/9 · Fair
Substructuresets the rating3/9 · Serious
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT636 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 5/9Superstructure 5/9Substructure 3/9 · sets the rating

636 ft end to end, longest span 163 ft: about 1.8 football fields. 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.

Built1970rebuilt 1984
Length636.2 ft193.9 m
Daily traffic4,844counted 2024
Last inspectedSeptember 2024every 24 months

Location

StatePennsylvania
CountyLackawanna
LocationScranton Cty Linden ST
CarriesSR 3020 Linden ST
CrossesLack Rr And Lack River
Coordinates41.41279, -75.66864

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length636.2 ft (193.9 m)
Max Span163.1 ft (49.7 m)
Deck Width66.6 ft (20.3 m)
Deck Area3936.2 sq m
Main Spans4
Year Built1970 (reconstructed 1984)

Traffic

Avg Daily Traffic4,844 (2024)
Truck Traffic3%
Lanes On Bridge2

Inspection & Ownership

Last InspectionSeptember 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000020784

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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