Mo 23 S over Blackwater Rvr
Johnson County, Missouri · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mo 23 S over Blackwater Rvr in Johnson County, Missouri, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2015, making it 10 years old at the 2025 inventory.
- It carries about 1,762 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 166 of the 475 inventoried bridges in Johnson County rated good (34.9%); 33 (6.9%) are rated poor.
- 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 → (38.90334, -93.56616)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 9 | Excellent condition |
| Substructure | 9 | Excellent condition |
Bridge details
| Structure | Prestressed concrete tee beam |
| Length | about 253 ft |
| Location | S 33 T 48 N R 24 W |
| NBI structure number | 35226 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Johnson County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 50 E over Mayes Br | 1968 | 18,503 | Fair |
| US 50 E over Trib Blackwater Rv | 1924 | 17,553 | Fair |
| Bu 13 S over US 50 | 1959 | 17,494 | Fair |
| US 50 W over Post Oak CR | 1967 | 14,542 | Fair |
| Bu 13 S over UP RR | 1963 | 14,241 | Fair |
| US 50 W over Devils Br | 1967 | 10,624 | Fair |
All bridges nearby: Johnson County, MO bridge conditions · every bridge in Johnson County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.