US Bridges

T512 Irish Flats L over Little Juniata River

PoorPosted for load

Blair County, Pennsylvania · .2 Mi.Nw.Of Birmingham · Structure no. 000000000005962

Built
1898
127 years old, rebuilt 2020
Condition
Poor
inspected July 2024
Type
Truss - Thru
Aluminum, Wrought Iron, or Cast Iron
Length
145 ft
1 main span
Daily traffic
27
2023 count
Owner
County
County Highway Agency

About this bridge

T512 Irish Flats L over Little Juniata River is a aluminum, wrought iron, or cast iron truss - thru carrying T512 Irish Flats L over Little Juniata River in Blair County, Pennsylvania. It was built in 1898 and reconstructed in 2020, so it is 127 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 3 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 27 vehicles a day, projected to reach 55 by 2043. The structure is 145 ft (44.2 m) long and 16 ft wide. If it were closed, the detour would be 98.8 mi (159 km).

CarriesT512 Irish Flats L
CrossesLittle Juniata River
Location.2 Mi.Nw.Of Birmingham
RouteCity Street 0
Coordinates40.6491, -78.19898
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure3 SeriousLoss of section, deterioration, spalling or scour have seriously affected primary structural components.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJuly 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating21.1 US tons
Inventory rating0 US tons

Structure

Structure typeTruss - Thru
MaterialAluminum, Wrought Iron, or Cast Iron
DeckWood or timber
Main spans1
Design loadH 20
Structure length145 ft (44.2 m)
Longest span142 ft (43.3 m)
Deck width16 ft (4.9 m)
Roadway width15 ft (4.5 m)
Vertical clearance over deck15 ft (4.6 m)

Traffic and service

Average daily traffic27 (2023)
Projected traffic55 by 2043
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

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusListed on the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.8 million
NavigationNo navigation control on waterway

Frequently asked questions

When was T512 Irish Flats L over Little Juniata River built?

It was built in 1898, making it 127 years old in 2025. It was reconstructed in 2020.

What condition is T512 Irish Flats L over Little Juniata River 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 July 2024.

How much traffic does T512 Irish Flats L over Little Juniata River carry?

About 27 vehicles per day (2023 count).

How long is T512 Irish Flats L over Little Juniata River?

The structure is 145 ft (44.2 m) long with a longest span of 142 ft (43.3 m) and a deck 16 ft wide.

Who owns T512 Irish Flats L over Little Juniata River?

It is owned by the County Highway Agency.