Mo 156 E over Cottonwood CR
Macon County, Missouri · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mo 156 E over Cottonwood CR in Macon County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1933, making it 92 years old at the 2025 inventory.
- It carries about 273 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 144 of the 291 inventoried bridges in Macon County rated fair (49.5%); 20 (6.9%) 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 → (40.02121, -92.64928)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 5 | Fair condition |
| Superstructure | 5 | Fair condition |
| Substructure | 5 | Fair condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 63 ft |
| Location | S 11 T 60 N R 16 W |
| NBI structure number | 8936 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Macon County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 63 S over US 36 | 1971 | 12,582 | Poor |
| US 63 S over BNSF RR | 1985 | 11,335 | Fair |
| US 36 E over Duck CR | 1924 | 11,214 | Fair |
| US 36 E over E Fk Chariton Rvr | 1984 | 10,917 | Fair |
| US 36 E over Winn CR | 1925 | 10,888 | Fair |
| US 36 W over Puzzle CR | 1924 | 9,809 | Fair |
All bridges nearby: Macon County, MO bridge conditions · every bridge in Macon County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.