US Bridges

T504 Mill Crk Holl over Saddlers Run

Fair

Huntingdon County, Pennsylvania · 159 Feet North of TR 655 · Structure no. 000000000018765

Built
1941
84 years old
Condition
Fair
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
52 ft
1 main span
Daily traffic
147
2024 count
Owner
State
State Highway Agency

About this bridge

T504 Mill Crk Holl over Saddlers Run is a steel stringer/multi-beam or girder carrying T504 Mill Crk Holl over Saddlers Run in Huntingdon County, Pennsylvania. It was built in 1941, so it is 84 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 147 vehicles a day, roughly 3% of them trucks, projected to reach 164 by 2032. The structure is 52 ft (15.8 m) long and 25 ft wide. If it were closed, the detour would be 14.9 mi (24 km).

Location

Open in Google Maps
CarriesT504 Mill Crk Holl
CrossesSaddlers Run
Location159 Feet North of TR 655
RouteState Highway 0
CountyHuntingdon County
StatePennsylvania
Coordinates40.45408, -77.91587
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJune 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 geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating61 US tons
Inventory rating37 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20
Structure length52 ft (15.8 m)
Longest span50 ft (15.2 m)
Deck width25 ft (7.6 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic147 (2024)
Projected traffic164 by 2032
Trucks3%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed14.9 mi (24 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$813,000
NavigationNo navigation control on waterway

Frequently asked questions

When was T504 Mill Crk Holl over Saddlers Run built?

It was built in 1941, making it 84 years old in 2025.

What condition is T504 Mill Crk Holl over Saddlers 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 June 2024.

How much traffic does T504 Mill Crk Holl over Saddlers Run carry?

About 147 vehicles per day (2024 count), of which roughly 3% are trucks.

How long is T504 Mill Crk Holl over Saddlers Run?

The structure is 52 ft (15.8 m) long with a longest span of 50 ft (15.2 m) and a deck 25 ft wide.

Who owns T504 Mill Crk Holl over Saddlers Run?

It is owned by the State Highway Agency.