Dayton Ave S over Is 29
Atchison County, Missouri · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Dayton Ave S over Is 29 in Atchison 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 1971, making it 54 years old at the 2025 inventory.
- It carries about 54 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 106 of the 190 inventoried bridges in Atchison County rated good (55.8%); 14 (7.4%) 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 December 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 → (40.52587, -95.60997)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 246 ft |
| Location | S 24 T 66 N R 42 W |
| NBI structure number | 2047 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | December 2024 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Atchison County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 29 S over Patton Br | 1969 | 17,114 | Fair |
| Is 29 S over Rose Br | 1969 | 17,114 | Fair |
| Is 29 S over Drain Dtch | 1969 | 17,114 | Fair |
| Is 29 S over Turkey CR | 1973 | 16,980 | Fair |
| Is 29 S over Angel Br | 1973 | 16,980 | Fair |
| Is 29 S over Mapes Br | 1969 | 15,391 | Fair |
All bridges nearby: Atchison County, MO bridge conditions · every bridge in Atchison County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.