Main Rd over Sunkhaze St/r Overflow
Penobscot County, Maine · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Main Rd over Sunkhaze St/r Overflow in Penobscot County, Maine, 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 2017, making it 8 years old at the 2025 inventory.
- It carries about 4,649 vehicles a day (traffic count year 2016).
- Its listed owner is the state highway agency.
- It is one of 64 of the 317 inventoried bridges in Penobscot County rated good (20.2%); 60 (18.9%) 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 2024, 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 → (44.98555, -68.63481)
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 | Steel stringer or multi-beam girder |
| Length | about 98 ft |
| Location | 3.2 Mi N of Jct Rte 178 |
| NBI structure number | 2825 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 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 Penobscot County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I 95 over Route 15 (broadway) | 1960 | 25,340 | Poor |
| I 95 over Kenduskeag Str&valley Av | 1960 | 25,340 | Fair |
| I 95 SB over Stillwater Avenue | 1960 | 25,150 | Poor |
| I 95 NB over Stillwater Avenue | 1960 | 25,120 | Poor |
| Penob River Br over Penobscot R & RR Yard | 1997 | 24,636 | Fair |
| I 95 SB over Industrial Spur (I-395) | 1960 | 23,160 | Fair |
All bridges nearby: Penobscot County, ME bridge conditions · every bridge in Penobscot County · Maine bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.