Heald Hwy over St George River
Knox County, Maine · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Heald Hwy over St George River in Knox County, Maine, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1960, making it 65 years old at the 2025 inventory.
- It carries about 6,940 vehicles a day (traffic count year 2016).
- Its listed owner is the state highway agency.
- It is one of 9 of the 54 inventoried bridges in Knox County rated poor (16.7%); 9 (16.7%) 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 July 2024, on a 24-month routine inspection cycle.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (44.21685, -69.27816)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 180 ft |
| Location | 0.2 Mi W of Route 235 |
| NBI structure number | 5893 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | July 2024 |
| 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 Maine department of transportation.
Busiest bridges in Knox County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Main St over Mill Creek | 1924 | 16,917 | Fair |
| Main St over Megunticook River | 1931 | 11,473 | Poor |
| Atlantic Hwy over ST. George River | 1991 | 8,570 | Fair |
| Belfast Rd over Spring Brook | 2025 | 6,960 | Good |
| Camden Rd over St George River | 1961 | 5,596 | Fair |
| Rockland Rd over Medomak River | 1931 | 4,890 | Fair |
All bridges nearby: Knox County, ME bridge conditions · every bridge in Knox County · Maine bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.