Mexico Rd 255 over Gallaher CR
Ralls County, Missouri · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mexico Rd 255 over Gallaher CR in Ralls County, Missouri, 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 1987, making it 38 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 39 of the 136 inventoried bridges in Ralls County rated good (28.7%); 11 (8.1%) are rated poor.
- 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 → (39.39447, -91.66069)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Continuous prestressed concrete tee beam |
| Length | about 98 ft |
| Location | S 10 T 53 N R 7 W |
| NBI structure number | 20319 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Ralls County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 61 S over Bear CR | 1990 | 10,100 | Good |
| US 61 S over NS RR | 1990 | 10,100 | Fair |
| US 61 N over NS RR | 1963 | 10,036 | Good |
| US 61 N over Bear CR | 1963 | 10,036 | Good |
| US 61 S over Salt Rvr | 1983 | 9,033 | Good |
| US 61 N over Salt River | 1963 | 8,731 | Fair |
All bridges nearby: Ralls County, MO bridge conditions · every bridge in Ralls County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.