US Bridges

T580 Rider Farm LN over Spring Run

Fair

Blair County, Pennsylvania · 1 Mi.Nw.Of Altoona Campus · Structure no. 000000000005945

Built
1969
56 years old
Condition
Fair
inspected November 2023
Type
Slab
Concrete
Length
29 ft
1 main span
Daily traffic
578
2023 count
Owner
County
County Highway Agency

About this bridge

T580 Rider Farm LN over Spring Run is a concrete slab carrying T580 Rider Farm LN over Spring Run in Blair County, Pennsylvania. It was built in 1969, so it is 56 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 578 vehicles a day, roughly 1% of them trucks, projected to reach 723 by 2043. The structure is 29 ft (8.8 m) long and 34 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesT580 Rider Farm LN
CrossesSpring Run
Location1 Mi.Nw.Of Altoona Campus
RouteCity Street 0
CountyBlair County
StatePennsylvania
Coordinates40.54313, -78.41678
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.
Superstructure7 GoodSome minor problems.
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 inspectionNovember 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 geometry6: Equal to present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64 US tons
Inventory rating38 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckNot applicable
Main spans1
Design loadHS 20
Structure length29 ft (8.8 m)
Longest span26 ft (7.9 m)
Deck width34 ft (10.4 m)
Roadway width30 ft (9.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic578 (2023)
Projected traffic723 by 2043
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was T580 Rider Farm LN over Spring Run built?

It was built in 1969, making it 56 years old in 2025.

What condition is T580 Rider Farm LN over Spring 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 November 2023.

How much traffic does T580 Rider Farm LN over Spring Run carry?

About 578 vehicles per day (2023 count), of which roughly 1% are trucks.

How long is T580 Rider Farm LN over Spring Run?

The structure is 29 ft (8.8 m) long with a longest span of 26 ft (7.9 m) and a deck 34 ft wide.

Who owns T580 Rider Farm LN over Spring Run?

It is owned by the County Highway Agency.