Mill Street over Monocacy Creek
Northampton County, Pennsylvania · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mill Street over Monocacy Creek in Northampton County, Pennsylvania, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2019, making it 6 years old at the 2025 inventory.
- It carries about 900 vehicles a day (traffic count year 2010).
- Its listed owner is the county highway agency.
- It is one of 113 of the 354 inventoried bridges in Northampton County rated good (31.9%); 29 (8.2%) 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 December 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 → (40.72334, -75.39469)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 51 ft |
| Location | Between PA 329 & 512 |
| NBI structure number | 000000000057306 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
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 Twp.line Rd.(t-434) | 1954 | 94,335 | 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 |
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.