Mason-morrow-millg over Muddy Creek
Warren County, Ohio · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mason-morrow-millg over Muddy Creek in Warren County, Ohio, 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 1962 and reconstructed in 1990, making it 63 years old at the 2025 inventory.
- It carries about 7,785 vehicles a day (traffic count year 2015).
- Its listed owner is the county highway agency.
- It is one of 115 of the 338 inventoried bridges in Warren County rated fair (34.0%); 18 (5.3%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated November 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 → (39.37405, -84.27471)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 5 | 5 | Fair condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 71 ft |
| Location | 0.37 mi E of US RT 42 |
| NBI structure number | 8331219 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | November 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 Warren County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| IR75 over Millers Creek I&o RR | 2010 | 102,957 | Good |
| IR75 over Shaker Creek | 2010 | 102,957 | Fair |
| Ir 75 over Trb Shaker Cr(clarks Rn) | 1960 | 102,957 | Fair |
| Ir 75 Ramp over over Hendrickson Run | 2009 | 93,130 | Good |
| I75 Ramp over Dicks Creek | 1960 | 91,260 | Poor |
| Rmp-wes Ro Rd-i71s over Ir-71 | 1973 | 76,025 | Good |
All bridges nearby: Warren County, OH bridge conditions · every bridge in Warren County · Ohio bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.