Structure 41659 · Centre County, PA

SR 99-i 99 NB over T-376 And Spring Creek

Carries SR 99-i 99 NB over T-376 And Spring Creek, 2 Mi NE Of State College.

Overall conditionGood

Set by its lowest-rated component: Deck and Superstructure and Substructure at 7 of 9.

How ratings work
Decksets the rating7/9 · Good
Superstructuresets the rating7/9 · Good
Substructuresets the rating7/9 · Good
Channelnot part of overall9/9 · Excellent
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT782 FT OVERALL100 FT0ELEVATION · LENGTHS TO SCALE
Deck 7/9Superstructure 7/9Substructure 7/9

782 ft end to end, longest span 220 ft: about 2.2 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.

Built200224 years old
Length782.2 ft238.4 m
Daily traffic15,804counted 2024
Last inspectedJuly 2024every 48 months

Location

StatePennsylvania
CountyCentre
Location2 Mi NE Of State College
CarriesSR 99-i 99 NB
CrossesT-376 And Spring Creek
Coordinates40.84345, -77.82280

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length782.2 ft (238.4 m)
Max Span220.1 ft (67.1 m)
Deck Width43.0 ft (13.1 m)
Deck Area3123.0 sq m
Main Spans4
Year Built2002

Traffic

Avg Daily Traffic15,804 (2024)
Truck Traffic13%
Lanes On Bridge2
Lanes Under Bridge2

Inspection & Ownership

Last InspectionJuly 2024
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000041659

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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