County Rd 611 over Maries Rvr
Osage County, Missouri · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- County Rd 611 over Maries Rvr in Osage County, Missouri, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 0 (failed condition, out of service) on the 0-9 scale.
- It was built in 1893, making it 132 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 17 of the 99 inventoried bridges in Osage County rated poor (17.2%); 17 (17.2%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated April 2019, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (38.44488, -91.99084)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 0 | 0 | Failed condition, out of service |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel through truss |
| Length | about 279 ft |
| Location | S 26 T 43 N R 10 W |
| NBI structure number | 14760 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | April 2019 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Osage County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 50 E over Laughlin CR | 1990 | 10,203 | Fair |
| US 50 E over Linn CR | 1990 | 10,203 | Fair |
| US 63 S over Schmitz CR | 1929 | 9,732 | Fair |
| US 50 W over Osage Rvr Crd Conservat | 1960 | 9,459 | Fair |
| US 63 S over Maries Rvr | 1985 | 7,974 | Good |
| US 63 S over Maries Rvr Ovrfl | 1985 | 7,974 | Fair |
All bridges nearby: Osage County, MO bridge conditions · every bridge in Osage County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.