Old Hwy 21 over Sinking CR
Reynolds County, Missouri · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Old Hwy 21 over Sinking CR in Reynolds County, Missouri, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the substructure, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1923, making it 102 years old at the 2025 inventory.
- It carries about 30 vehicles a day (traffic count year 2024).
- Its listed owner is the county highway agency.
- It is one of 7 of the 93 inventoried bridges in Reynolds County rated poor (7.5%); 7 (7.5%) are rated poor.
- 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 → (37.3556, -90.9704)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 4 | Poor condition |
Bridge details
| Structure | Steel through truss |
| Length | about 222 ft |
| Location | S 29 T 31 N R 1 E |
| NBI structure number | 23117 |
| Condition class | Poor |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Reynolds County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Mo 21 S over Darr Valley | 1967 | 1,959 | Fair |
| Mo 21 S over Sinking CR | 1968 | 1,932 | Fair |
| Mo 21 S over Logan CR | 1967 | 1,759 | Fair |
| Rt Kk S over Toms CR | 1967 | 1,692 | Fair |
| Mo 21 S over Sinking CR | 1968 | 1,393 | Fair |
| Mo 21 S over West Fork Black Rv | 2004 | 1,325 | Fair |
All bridges nearby: Reynolds County, MO bridge conditions · every bridge in Reynolds County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.