Rt Jj E over Big N CR
Mercer County, Missouri · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Rt Jj E over Big N CR in Mercer County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1958, making it 67 years old at the 2025 inventory.
- It carries about 44 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 50 of the 135 inventoried bridges in Mercer County rated fair (37.0%); 23 (17.0%) are rated poor.
- 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 → (40.27291, -93.44056)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 20 ft |
| Location | S 12 T 63 N R 23 W |
| NBI structure number | 6869 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Mercer County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 65 S over Wildcat CR | 2001 | 2,192 | Fair |
| US 136 E over Weldon Fk of Grand | 1971 | 1,917 | Fair |
| US 136 E over Grand Rvr Ovrfl | 1971 | 1,917 | Poor |
| US 136 E over W Muddy CR | 1971 | 1,221 | Fair |
| US 136 E over W Muddy CR | 1971 | 1,221 | Fair |
| US 136 E over Sandy CR | 1985 | 1,084 | Good |
All bridges nearby: Mercer County, MO bridge conditions · every bridge in Mercer County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.