Structure 31A172 · Monongalia County, WV

Interstate 79 SB over US 19

Carries Interstate 79 SB over US 19, 2.34 Mi South Co RT 19/24.

Overall conditionFair

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

How ratings work
Deck6/9 · Satisfactory
Superstructure7/9 · Good
Substructuresets the rating5/9 · Fair
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT465 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9Superstructure 7/9Substructure 5/9 · sets the rating

465 ft end to end: about 6 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 multi-beam bridge.

Built197155 years old
Length465.2 ft141.8 m
Daily traffic15,600counted 2022
Last inspectedSeptember 2023every 24 months

Location

StateWest Virginia
CountyMonongalia
Location2.34 Mi South Co RT 19/24
CarriesInterstate 79 SB
CrossesUS 19
Coordinates39.62663, -79.98848

Physical Characteristics

MaterialSteel
DesignStringer/Multi-beam
Total Length465.2 ft (141.8 m)
Max Span155.2 ft (47.3 m)
Deck Width58.7 ft (17.9 m)
Deck Area2538.2 sq m
Main Spans1
Year Built1971

Traffic

Avg Daily Traffic15,600 (2022)
Truck Traffic16%
Lanes On Bridge3
Lanes Under Bridge5

Inspection & Ownership

Last InspectionSeptember 2023
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number00000000031A172

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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