County Rd 831 over Long Branch CR
Monroe County, Missouri · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Rd 831 over Long Branch CR in Monroe County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 2007, making it 18 years old at the 2025 inventory.
- It carries about 20 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 103 of the 175 inventoried bridges in Monroe County rated fair (58.9%); 23 (13.1%) 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 June 2024, on a 24-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 → (39.34986, -92.02403)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 9 | 9 | Excellent condition |
Bridge details
| Structure | Prestressed concrete stringer or multi-beam girder |
| Length | about 94 ft |
| Location | S 27 T 53 N R 10 W |
| NBI structure number | 31693 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | June 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 Missouri department of transportation.
Busiest bridges in Monroe County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 24 E over Lit Indian CR | 1931 | 2,785 | Fair |
| Mo 15 S over Mid Fk Salt Rvr | 1985 | 2,320 | Poor |
| Mo 15 S over CR | 1925 | 2,320 | Fair |
| Mo 15 S over Elk Fk Salt Rvr | 1988 | 2,206 | Good |
| US 24 E over Buck CR | 1984 | 1,984 | Fair |
| US 24 E over NS RR | 1984 | 1,984 | Fair |
All bridges nearby: Monroe County, MO bridge conditions · every bridge in Monroe County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.