Diamond Mill M0217 over trib. to Poplar Run
Montgomery County, Ohio · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Diamond Mill M0217 over trib. to Poplar Run in Montgomery County, Ohio, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1979, making it 46 years old at the 2025 inventory.
- It carries about 4,349 vehicles a day (traffic count year 2018).
- Its listed owner is the county highway agency.
- It is one of 183 of the 633 inventoried bridges in Montgomery County rated fair (28.9%); 18 (2.8%) are rated poor.
- Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
- Its class is unchanged from 2024 (fair), but component ratings moved: superstructure 6 to 5.
- Its most recent inspection on record is dated May 2024, on a 12-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 → (39.82677, -84.36711)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 5 | Fair condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 34 ft |
| Location | 5.7 Miles North of SR35 |
| NBI structure number | 5765846 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2024 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Ohio department of transportation.
Busiest bridges in Montgomery County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ir-75 over Cincinnati Street | 1966 | 130,047 | Good |
| Ir-75 over Stewart Street | 2011 | 130,047 | Good |
| Ir-75 over Carillon Blvd Gt Miami R | 1965 | 128,842 | Good |
| Nb/sb Ir-75 over Third St.; CR194A | 2014 | 123,721 | Good |
| Ir-75 over Salem Ave Second First | 2014 | 123,721 | Good |
| Ramp EB35 to NB75 over Rmp=us35*e-i75*n Un Rmps | 1969 | 122,680 | Good |
All bridges nearby: Montgomery County, OH bridge conditions · every bridge in Montgomery County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.