US Bridges

T594 Sleepy Hollow over Marilla Creek

Fair

McKean County, Pennsylvania · At SR 346 Intersection · Structure no. 000000000056075

Built
2018
7 years old
Condition
Fair
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
48 ft
1 main span
Daily traffic
75
2018 count
Owner
Town / Township
Town or Township Highway Agency

About this bridge

T594 Sleepy Hollow over Marilla Creek is a steel stringer/multi-beam or girder carrying T594 Sleepy Hollow over Marilla Creek in McKean County, Pennsylvania. It was built in 2018, so it is 7 years old, younger 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 6 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 75 vehicles a day, roughly 2% of them trucks, projected to reach 100 by 2038. The structure is 48 ft (14.6 m) long and 23 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesT594 Sleepy Hollow
CrossesMarilla Creek
LocationAt SR 346 Intersection
RouteCity Street 0
Coordinates41.94719, -78.7066
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
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating74 US tons
Inventory rating44 US tons

Structure

MaterialSteel
DeckWood or timber
Main spans1
Design loadHS 20
Structure length48 ft (14.6 m)
Longest span46 ft (14 m)
Deck width23 ft (7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic75 (2018)
Projected traffic100 by 2038
Trucks2%
Lanes on structure2
Traffic directionTwo-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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T594 Sleepy Hollow over Marilla Creek built?

It was built in 2018, making it 7 years old in 2025.

What condition is T594 Sleepy Hollow over Marilla 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 September 2024.

How much traffic does T594 Sleepy Hollow over Marilla Creek carry?

About 75 vehicles per day (2018 count), of which roughly 2% are trucks.

How long is T594 Sleepy Hollow over Marilla Creek?

The structure is 48 ft (14.6 m) long with a longest span of 46 ft (14 m) and a deck 23 ft wide.

Who owns T594 Sleepy Hollow over Marilla Creek?

It is owned by the Town or Township Highway Agency.