US Bridges

T-384 Brooklyn ST over Knapp Creek

PoorPosted for load

McKean County, Pennsylvania · Near Haines DR Intersect · Structure no. 000000000025602

Built
1890
135 years old, rebuilt 1996
Condition
Poor
inspected August 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
40 ft
1 main span
Daily traffic
40
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-384 Brooklyn ST over Knapp Creek is a steel stringer/multi-beam or girder carrying T-384 Brooklyn ST over Knapp Creek in McKean County, Pennsylvania. It was built in 1890 and reconstructed in 1996, so it is 135 years old, older than the Pennsylvania average of 54.8 years.

The most recent inspection reported to the Federal Highway Administration rates it in poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. Its operating status is: posted for load restriction.

It carries about 40 vehicles a day, projected to reach 50 by 2038. The structure is 40 ft (12.2 m) long and 15 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesT-384 Brooklyn ST
CrossesKnapp Creek
LocationNear Haines DR Intersect
RouteCity Street 0
Coordinates41.95204, -78.48127
Functional classRural Local

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusPosted for load restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation3: Basically intolerable, requiring high priority of corrective action
Deck geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating15 US tons
Inventory rating9 US tons

Structure

MaterialSteel
DeckOpen grating
Main spans1
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span39 ft (11.9 m)
Deck width15 ft (4.6 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2018)
Projected traffic50 by 2038
Trucks—
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed98.8 mi (159 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerTown or Township Highway Agency
Maintained byTown or Township Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$69,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-384 Brooklyn ST over Knapp Creek built?

It was built in 1890, making it 135 years old in 2025. It was reconstructed in 1996.

What condition is T-384 Brooklyn ST over Knapp Creek in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in August 2024.

How much traffic does T-384 Brooklyn ST over Knapp Creek carry?

About 40 vehicles per day (2018 count).

How long is T-384 Brooklyn ST over Knapp Creek?

The structure is 40 ft (12.2 m) long with a longest span of 39 ft (11.9 m) and a deck 15 ft wide.

Who owns T-384 Brooklyn ST over Knapp Creek?

It is owned by the Town or Township Highway Agency.