Mo 13 S over Blackjack CR
Lafayette County, Missouri · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Mo 13 S over Blackjack CR in Lafayette County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1924 and reconstructed in 1988, making it 101 years old at the 2025 inventory.
- It carries about 5,666 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 152 of the 239 inventoried bridges in Lafayette County rated fair (63.6%); 10 (4.2%) 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 January 2023, on a 24-month routine inspection cycle.
- 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 → (38.97419, -93.73625)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 174 ft |
| Location | S 12 T 48 N R 26 W |
| NBI structure number | 4760 |
| Condition class | Fair |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Lafayette County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 70 E over Witchet CR | 1960 | 34,521 | Fair |
| Is 70 W over Horseshoe CR | 1963 | 22,696 | Fair |
| Is 70 W over Lt Hrshoe CR | 1963 | 22,696 | Poor |
| Is 70 E over Horseshoe CR | 1951 | 21,839 | Fair |
| Is 70 E over Lit Horseshoe CR | 1951 | 21,839 | Fair |
| Is 70 W over Sni-a-bar CR | 1963 | 19,225 | Fair |
All bridges nearby: Lafayette County, MO bridge conditions · every bridge in Lafayette County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.