Structure 43990 · Centre County, PA

SR 99-i 99 over Blue Springs Hollow / RD

Carries SR 99-i 99 over Blue Springs Hollow / RD, 2 Mi SW Port Matilda.

Overall conditionFair

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

How ratings work
Decksets the rating6/9 · Satisfactory
Superstructuresets the rating6/9 · Satisfactory
Substructure7/9 · Good
Channelnot part of overall8/9 · Very Good
0 failed4 poor6 fair9 excellent

Elevation

Side view, colored by inspection rating
SEMI-TRUCK · 72 FT309 FT OVERALL50 FT0ELEVATION · LENGTHS TO SCALE
Deck 6/9 · sets the ratingSuperstructure 6/9 · sets the ratingSubstructure 7/9

309 ft end to end, longest span 152 ft: about 4 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.

Built200422 years old
Length309.1 ft94.2 m
Daily traffic6,583counted 2023
Last inspectedJuly 2022every 48 months

Location

StatePennsylvania
CountyCentre
Location2 Mi SW Port Matilda
CarriesSR 99-i 99
CrossesBlue Springs Hollow / RD
Coordinates40.74017, -78.11785

Physical Characteristics

MaterialPrestressed Concrete Continuous
DesignStringer/Multi-beam
Total Length309.1 ft (94.2 m)
Max Span151.9 ft (46.3 m)
Deck Width43.0 ft (13.1 m)
Deck Area1234.0 sq m
Main Spans2
Year Built2004

Traffic

Avg Daily Traffic6,583 (2023)
Truck Traffic17%
Lanes On Bridge2

Inspection & Ownership

Last InspectionJuly 2022
Inspection FrequencyEvery 48 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Scour Critical8 — Stable, low risk
Structure Number000000000043990

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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