Mary Lois Rd over Br of Mud CR
Ray County, Missouri · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mary Lois Rd over Br of Mud CR in Ray County, Missouri, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1940, making it 85 years old at the 2025 inventory.
- It carries about 25 vehicles a day (traffic count year 2023).
- Its listed owner is the county highway agency.
- It is one of 22 of the 184 inventoried bridges in Ray County rated poor (12.0%); 22 (12.0%) 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 May 2021, 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 → (39.49359, -93.88931)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 3 | 3 | Serious condition |
Bridge details
| Structure | Steel girder and floorbeam |
| Length | about 40 ft |
| Location | S 14 T 54 N R 27 W |
| NBI structure number | 15839 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | May 2021 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 4: foundations stable, field review says exposed foundations need protection |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Ray County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mo 10 E over Fishing Rvr | 1964 | 7,158 | Fair |
| Mo 210 E over Fishing Rvr | 1985 | 6,908 | Good |
| Mo 210 E over BNSF RR | 1997 | 6,908 | Fair |
| Mo 210 E over Drain Dtch | 1985 | 6,908 | Good |
| Mo 210 E over Rollins CR | 1990 | 6,857 | Fair |
| Mo 210 E over Keeney CR | 1990 | 6,819 | Fair |
All bridges nearby: Ray County, MO bridge conditions · every bridge in Ray County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.