US Bridges

T-684 over North Run

Fair

Tioga County, Pennsylvania · 2.2 MI NW of Holliday · Structure no. 000000000033300

Built
1945
80 years old
Condition
Fair
inspected July 2023
Type
Slab
Steel
Length
29 ft
1 main span
Daily traffic
100
2021 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T-684 over North Run is a steel slab carrying T-684 over North Run in Tioga County, Pennsylvania. It was built in 1945, so it is 80 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 100 vehicles a day, roughly 5% of them trucks, projected to reach 155 by 2043. The structure is 29 ft (8.8 m) long and 25 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesT-684
CrossesNorth Run
Location2.2 MI NW of Holliday
RouteCity Street 0
CountyTioga County
StatePennsylvania
Coordinates41.88336, -77.26487
Functional classRural Local

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating60 US tons
Inventory rating36 US tons

Structure

Structure typeSlab
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width25 ft (7.7 m)
Roadway width23 ft (6.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2021)
Projected traffic155 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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$81,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T-684 over North Run built?

It was built in 1945, making it 80 years old in 2025.

What condition is T-684 over North Run 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 July 2023.

How much traffic does T-684 over North Run carry?

About 100 vehicles per day (2021 count), of which roughly 5% are trucks.

How long is T-684 over North Run?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 25 ft wide.

Who owns T-684 over North Run?

It is owned by the Town or Township Highway Agency.