Rt Aa E over Cox CR
Washington County, Missouri · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Rt Aa E over Cox CR in Washington County, Missouri, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1960, making it 65 years old at the 2025 inventory.
- It carries about 160 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 48 of the 156 inventoried bridges in Washington County rated good (30.8%); 17 (10.9%) 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 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 → (37.9568, -90.92918)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Culvert | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 38 ft |
| Location | S 4 T 37 N R 1 E |
| NBI structure number | 7238 |
| Condition class | Good |
| 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 Washington County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mo 21 S over UP RR | 1993 | 7,409 | Good |
| Mo 21 S over Old Mines CR | 1933 | 7,409 | Fair |
| Mo 8 E over Breton CR | 2002 | 6,972 | Fair |
| Mo 8 E over Br Mill CR | 1968 | 6,462 | Fair |
| Mo 8 E over UP RR | 1968 | 6,462 | Poor |
| Mo 21 S over Old Mines CR | 2006 | 5,370 | Good |
All bridges nearby: Washington County, MO bridge conditions · every bridge in Washington County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.