US Bridges

T-547 Railroad Rd. over Irish Creek

Poor

Berks County, Pennsylvania · Dauberville Bridge · Structure no. 000000000005346

Built
1951
74 years old, rebuilt 1976
Condition
Poor
inspected August 2023
Type
Stringer/Multi-beam or Girder
Steel
Length
66 ft
1 main span
Daily traffic
1,249
2021 count
Owner
County
County Highway Agency

About this bridge

T-547 Railroad Rd. over Irish Creek is a steel stringer/multi-beam or girder carrying T-547 Railroad Rd. over Irish Creek in Berks County, Pennsylvania. It was built in 1951 and reconstructed in 1976, so it is 74 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 4 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.

It carries about 1,249 vehicles a day, roughly 1% of them trucks, projected to reach 1,250 by 2025. The structure is 66 ft (20.1 m) long and 34 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesT-547 Railroad Rd.
CrossesIrish Creek
LocationDauberville Bridge
Coordinates40.45896, -75.9813
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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourScour critical; foundations unstable for calculated scour conditions
Structural evaluation4: Meets minimum tolerable limits to be 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 alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating72 US tons
Inventory rating43 US tons

Structure

MaterialSteel
DeckOpen grating
Main spans1
Design loadHS 20
Structure length66 ft (20.1 m)
Longest span64 ft (19.5 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,249 (2021)
Projected traffic1,250 by 2025
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 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 T-547 Railroad Rd. over Irish Creek built?

It was built in 1951, making it 74 years old in 2025. It was reconstructed in 1976.

What condition is T-547 Railroad Rd. over Irish Creek 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 August 2023.

How much traffic does T-547 Railroad Rd. over Irish Creek carry?

About 1,249 vehicles per day (2021 count), of which roughly 1% are trucks.

How long is T-547 Railroad Rd. over Irish Creek?

The structure is 66 ft (20.1 m) long with a longest span of 64 ft (19.5 m) and a deck 34 ft wide.

Who owns T-547 Railroad Rd. over Irish Creek?

It is owned by the County Highway Agency.