Structure 24641 · Lycoming County, PA

I - 180 WB over Sr8034/2039/loyalsock Ck

Carries I - 180 WB over Sr8034/2039/loyalsock Ck, Borough Of Montoursville.

Overall conditionFair

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

How ratings work
Deck7/9 · Good
Superstructuresets the rating6/9 · Satisfactory
Substructuresets the rating6/9 · Satisfactory
Channelnot part of overall6/9 · Satisfactory
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT898 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 6/9 · sets the ratingSubstructure 6/9 · sets the rating

898 ft end to end, longest span 160 ft: about 2.5 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.

Built1976rebuilt 2000
Length898.0 ft273.7 m
Daily traffic15,693counted 2024
Last inspectedJune 2024every 24 months

Location

StatePennsylvania
CountyLycoming
LocationBorough Of Montoursville
CarriesI - 180 WB
CrossesSr8034/2039/loyalsock Ck
Coordinates41.24997, -76.93861

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length898.0 ft (273.7 m)
Max Span160.1 ft (48.8 m)
Deck Width45.6 ft (13.9 m)
Deck Area3804.4 sq m
Main Spans7
Year Built1976 (reconstructed 2000)

Traffic

Avg Daily Traffic15,693 (2024)
Truck Traffic11%
Lanes On Bridge2
Lanes Under Bridge6

Inspection & Ownership

Last InspectionJune 2024
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical5 — Stable for scour
Structure Number000000000024641

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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