Route 1 over Penobscot River(s chan)
Waldo County, Maine · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Route 1 over Penobscot River(s chan) in Waldo County, Maine, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2007, making it 18 years old at the 2025 inventory.
- It carries about 4,292 vehicles a day (traffic count year 2016).
- Its listed owner is the state highway agency.
- It is one of 15 of the 92 inventoried bridges in Waldo County rated good (16.3%); 15 (16.3%) 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 November 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 → (44.56003, -68.80228)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous prestressed concrete cable-stayed girder |
| Length | about 2,125 ft |
| Location | County line |
| NBI structure number | 6421 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | November 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 9: foundations on dry land well above flood elevations |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Maine department of transportation.
Busiest bridges in Waldo County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Searsport Av over Passagassawaukeag + RR | 1963 | 18,553 | Fair |
| Searsport Av over Goose River | 2021 | 12,663 | Good |
| Route 1 Byp over Route 3 (belmont Av) | 1973 | 7,983 | Fair |
| Atlantic Hwy over Little River | 1944 | 7,764 | Poor |
| N Main St over Mill Stream (cove Brook) | 1979 | 7,491 | Fair |
| Atlantic Hwy over Frohock Brook | 2004 | 6,734 | Good |
All bridges nearby: Waldo County, ME bridge conditions · every bridge in Waldo County · Maine bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.