US Bridges

Township Line Road over Monocacy Creek

Fair

Northampton County, Pennsylvania · West of SR 3015 · Structure no. 000000000028911

Built
1991
34 years old
Condition
Fair
inspected May 2024
Type
Box Beam or Girders - Multiple
Prestressed Concrete
Length
114 ft
2 main spans
Daily traffic
500
2010 count
Owner
County
County Highway Agency

About this bridge

Township Line Road over Monocacy Creek is a prestressed concrete box beam or girders - multiple carrying Township Line Road over Monocacy Creek in Northampton County, Pennsylvania. It was built in 1991, so it is 34 years old, younger 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 6 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 500 vehicles a day, roughly 1% of them trucks, projected to reach 1,040 by 2030. The structure is 114 ft (34.7 m) long and 34 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

Location

Open in Google Maps
CarriesTownship Line Road
CrossesMonocacy Creek
LocationWest of SR 3015
RouteCity Street 0
CountyNorthampton County
StatePennsylvania
Coordinates40.66993, -75.36373
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
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating68 US tons
Inventory rating43 US tons

Structure

Structure typeBox Beam or Girders - Multiple
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadHS 25 or greater
Structure length114 ft (34.7 m)
Longest span55 ft (16.8 m)
Deck width34 ft (10.3 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic500 (2010)
Projected traffic1,040 by 2030
Trucks1%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Township Line Road over Monocacy Creek built?

It was built in 1991, making it 34 years old in 2025.

What condition is Township Line Road over Monocacy 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 May 2024.

How much traffic does Township Line Road over Monocacy Creek carry?

About 500 vehicles per day (2010 count), of which roughly 1% are trucks.

How long is Township Line Road over Monocacy Creek?

The structure is 114 ft (34.7 m) long with a longest span of 55 ft (16.8 m) and a deck 34 ft wide.

Who owns Township Line Road over Monocacy Creek?

It is owned by the County Highway Agency.