Is 435 S over Mill CR
Clay County, Missouri · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Is 435 S over Mill CR in Clay 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 1969, making it 56 years old at the 2025 inventory.
- It carries about 76,557 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 256 of the 444 inventoried bridges in Clay County rated fair (57.7%); 32 (7.2%) 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 → (39.20001, -94.49272)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 6 | Satisfactory condition |
Bridge details
| Structure | Continuous concrete culvert |
| Length | about 44 ft |
| Location | S 27 T 51 N R 32 W |
| NBI structure number | 1276 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Clay County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 29 S over Cst Levee Rd Missouri | 2010 | 108,151 | Fair |
| Is 29 S over Cst 14TH Ave BNSF RR | 1953 | 108,151 | Fair |
| Is 435 S over Drain Dtch | 1967 | 81,653 | Fair |
| Is 435 S over Cst N Levee Rd Missou | 1972 | 81,653 | Fair |
| Is 35 S over Lit Shoal CR | 1953 | 66,486 | Fair |
| Mo 152 E over Is 35 | 2019 | 66,123 | Good |
All bridges nearby: Clay County, MO bridge conditions · every bridge in Clay County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.