Pa Tpk (I-76) over Conewago Creek
Lebanon County, Pennsylvania · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Pa Tpk (I-76) over Conewago Creek in Lebanon 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 1949, making it 76 years old at the 2025 inventory.
- It carries about 24,423 vehicles a day (traffic count year 2001).
- It is one of 142 of the 229 inventoried bridges in Lebanon County rated fair (62.0%); 21 (9.2%) 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.
- It is coded scour critical (NBI item 113 = 3): scour critical: foundations unstable for the assessed or calculated scour.
- 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 → (40.20847, -76.56211)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Continuous concrete tee beam |
| Length | about 85 ft |
| Location | South Londonderry Twp |
| NBI structure number | 000000000022825 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | March 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 3: scour critical: foundations unstable for the assessed or calculated scour |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Pennsylvania department of transportation.
Busiest bridges in Lebanon County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-81; SR 0081 over Branch Raccoon Creek | 1967 | 54,361 | Fair |
| I-81; SR 0081 over Raccoon Creek | 1967 | 54,361 | Fair |
| I-81; SR 0081 over Indiantown Run | 1967 | 54,361 | Fair |
| I-81;SR 0081 over Aire Run | 1967 | 54,361 | Fair |
| Pa Tpk (I-76) over Conrail(aband.) | 1949 | 29,582 | Good |
| I-81 Sb;sr 0081 over Bullfrog Rd& Trib.swatar | 1967 | 27,367 | Fair |
All bridges nearby: Lebanon County, PA bridge conditions · every bridge in Lebanon County · Pennsylvania bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.