T-383 Cassel Rd over Pa Tpk (I-476)
Lehigh County, Pennsylvania · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- T-383 Cassel Rd over Pa Tpk (I-476) in Lehigh County, Pennsylvania, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
- It was built in 1955, making it 70 years old at the 2025 inventory.
- It carries about 200 vehicles a day (traffic count year 1992).
- It is one of 113 of the 378 inventoried bridges in Lehigh County rated good (29.9%); 41 (10.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated March 2023, on a 24-month routine inspection cycle.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (40.46305, -75.44671)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 9 | 9 | Excellent condition |
| Superstructure | 9 | 9 | Excellent condition |
| Substructure | 9 | 9 | Excellent condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 178 ft |
| Location | 1 Mi N of Bucks Co. Line |
| NBI structure number | 000000000023535 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 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 Lehigh County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-78(LR 1045) over Pa 100(LR 672) | 1958 | 126,705 | Fair |
| I 78(LR 1045) over Norfolk/southern RR | 1988 | 126,705 | Fair |
| I-78 (lr 1045) over SR 3009 (ruppsville Rd) | 1988 | 126,705 | Good |
| US 22(LR 771) over T-638(irving St.) | 1952 | 92,608 | Good |
| US 22 (lr 771) over Lehigh River | 2017 | 92,608 | Good |
| US 22 (lr 771) over Leh. Canal SR 1007 NSR | 2017 | 92,608 | Good |
All bridges nearby: Lehigh County, PA bridge conditions · every bridge in Lehigh County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.