Main St over Twelve Mile Stream
Kennebec County, Maine · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Main St over Twelve Mile Stream in Kennebec 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 2016, making it 9 years old at the 2025 inventory.
- It carries about 6,509 vehicles a day (traffic count year 2016).
- Its listed owner is the state highway agency.
- It is one of 38 of the 190 inventoried bridges in Kennebec County rated good (20.0%); 24 (12.6%) 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 October 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 → (44.63627, -69.50491)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 62 ft |
| Location | 0.9 Mi N of Benton |
| NBI structure number | 2117 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | October 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 Kennebec County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Memorial Dr over Kennebec River + Mcrr | 1949 | 20,252 | Fair |
| I-95 SB over Bond Brook & Bond Bk Rd | 1959 | 18,790 | Fair |
| I-95 Northbound over Bond Brook & Bond Bk Rd | 1959 | 18,290 | Fair |
| Alfond Connector over Eight Rod Road | 2005 | 17,211 | Good |
| I 95 SB over Quarry RD | 1960 | 17,030 | Fair |
| Western Av over Interstate 95 NB & SB | 1955 | 16,934 | Poor |
All bridges nearby: Kennebec County, ME bridge conditions · every bridge in Kennebec County · Maine bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.