US Bridges

Mill Ave. over Tulpehocken Creek

Fair

Lebanon County, Pennsylvania · Myerstown/Tulpehocken · Structure no. 000000000022928

Built
1900
125 years old
Condition
Fair
inspected April 2024
Type
Arch - Deck
Masonry
Length
26 ft
2 main spans
Daily traffic
200
2012 count
Owner
County
County Highway Agency

About this bridge

Mill Ave. over Tulpehocken Creek is a masonry arch - deck carrying Mill Ave. over Tulpehocken Creek in Lebanon County, Pennsylvania. It was built in 1900, so it is 125 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 600 by 2032. The structure is 26 ft (7.9 m) long and 20 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesMill Ave.
CrossesTulpehocken Creek
LocationMyerstown/Tulpehocken
RouteCity Street 0
CountyLebanon County
StatePennsylvania
Coordinates40.37293, -76.29678
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
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionApril 2024
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 geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating54 US tons
Inventory rating36 US tons

Structure

Structure typeArch - Deck
MaterialMasonry
DeckNot applicable
Main spans2
Design loadUnknown
Structure length26 ft (7.9 m)
Longest span11 ft (3.4 m)
Deck width20 ft (6.2 m)
Roadway width16 ft (4.8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2012)
Projected traffic600 by 2032
Trucks10%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$129,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Mill Ave. over Tulpehocken Creek built?

It was built in 1900, making it 125 years old in 2025.

What condition is Mill Ave. over Tulpehocken 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 April 2024.

How much traffic does Mill Ave. over Tulpehocken Creek carry?

About 200 vehicles per day (2012 count), of which roughly 10% are trucks.

How long is Mill Ave. over Tulpehocken Creek?

The structure is 26 ft (7.9 m) long with a longest span of 11 ft (3.4 m) and a deck 20 ft wide.

Who owns Mill Ave. over Tulpehocken Creek?

It is owned by the County Highway Agency.