US 22 (lr 772) over Twp.line Rd.(t-434)
Northampton County, Pennsylvania · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- US 22 (lr 772) over Twp.line Rd.(t-434) in Northampton County, Pennsylvania, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1954 and reconstructed in 1979, making it 71 years old at the 2025 inventory.
- It carries about 94,335 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 212 of the 354 inventoried bridges in Northampton County rated fair (59.9%); 29 (8.2%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: superstructure 6 to 7, substructure 6 to 7.
- Its most recent inspection on record is dated February 2023, on a 24-month routine inspection cycle.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (40.67155, -75.36577)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 6 | 7 | Good condition |
| Substructure | 6 | 7 | Good condition |
Bridge details
| Structure | Concrete tee beam |
| Length | about 39 ft |
| Location | US 22 over T-434 |
| NBI structure number | 000000000028474 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | February 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
Busiest bridges in Northampton County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 22 (lr 772) over Pa 512(LR 48046) | 1954 | 94,431 | Fair |
| US 22 (lr 772) over Christian Spring Rd. | 1954 | 94,335 | Fair |
| US 22 (lr 772) over Norfolk Southern RR | 1954 | 94,335 | Fair |
| US 22 (lr 772) over Pa 191 & Monocacy CR. | 1954 | 94,335 | Fair |
| US 22 (lr 772) over T-575(jacksonville Road) | 1954 | 89,021 | Fair |
| SR 33 (lr 1098SB) over SR 22(LR 772) | 2017 | 52,169 | Good |
All bridges nearby: Northampton County, PA bridge conditions · every bridge in Northampton County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.