Grondin Road over Ragged Brook
Penobscot County, Maine · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Grondin Road over Ragged Brook in Penobscot County, Maine, 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 2000, making it 25 years old at the 2025 inventory.
- It carries about 20 vehicles a day (traffic count year 2024).
- It is one of 193 of the 317 inventoried bridges in Penobscot County rated fair (60.9%); 60 (18.9%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- It does not appear under this structure number in the 2024 inventory (a new or renumbered structure).
- Its most recent inspection on record is dated May 2024, on a 24-month routine inspection cycle.
- 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 → (46.05429, -68.59068)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 6 | Satisfactory condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 34 ft |
| Location | 1.2 Miles West of Interse |
| NBI structure number | 1709036P0000000 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
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.