US Bridges

SR 3003=8th Street over Buffalo Creek

Fair

Union County, Pennsylvania · Boro of Mifflinburg · Structure no. 000000000033550

Built
1940
85 years old
Condition
Fair
inspected May 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
77 ft
1 main span
Daily traffic
1,484
2024 count
Owner
State
State Highway Agency

About this bridge

SR 3003=8th Street over Buffalo Creek is a steel stringer/multi-beam or girder carrying SR 3003=8th Street over Buffalo Creek in Union County, Pennsylvania. It was built in 1940, so it is 85 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,484 vehicles a day, roughly 4% of them trucks, projected to reach 1,524 by 2032. The structure is 77 ft (23.5 m) long and 20 ft wide. If it were closed, the detour would be 9.9 mi (16 km).

Location

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CarriesSR 3003=8th Street
CrossesBuffalo Creek
LocationBoro of Mifflinburg
RouteState Highway 0
CountyUnion County
StatePennsylvania
Coordinates40.92361, -77.05344
Functional classRural Minor Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating63.1 US tons
Inventory rating38 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckWood or timber
Main spans1
Design loadUnknown
Structure length77 ft (23.5 m)
Longest span73 ft (22.3 m)
Deck width20 ft (6.1 m)
Roadway width17 ft (5.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,484 (2024)
Projected traffic1,524 by 2032
Trucks4%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed9.9 mi (16 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$373,000
NavigationNo navigation control on waterway

Frequently asked questions

When was SR 3003=8th Street over Buffalo Creek built?

It was built in 1940, making it 85 years old in 2025.

What condition is SR 3003=8th Street over Buffalo Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in May 2024.

How much traffic does SR 3003=8th Street over Buffalo Creek carry?

About 1,484 vehicles per day (2024 count), of which roughly 4% are trucks.

How long is SR 3003=8th Street over Buffalo Creek?

The structure is 77 ft (23.5 m) long with a longest span of 73 ft (22.3 m) and a deck 20 ft wide.

Who owns SR 3003=8th Street over Buffalo Creek?

It is owned by the State Highway Agency.