Chestnut Rd E over Martins Br
Cooper County, Missouri · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Chestnut Rd E over Martins Br in Cooper County, Missouri, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 6 (satisfactory condition) on the 0-9 scale.
- It was built in 1961, making it 64 years old at the 2025 inventory.
- It carries about 50 vehicles a day (traffic count year 2024).
- Its listed owner is the state highway agency.
- It is one of 90 of the 193 inventoried bridges in Cooper County rated fair (46.6%); 6 (3.1%) are rated poor.
- Its traffic status in the 2025 inventory is posted for load (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated July 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 → (38.93541, -92.87422)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 6 | 6 | Satisfactory condition |
| Superstructure | 6 | 6 | Satisfactory condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 126 ft |
| Location | S 15 T 48 N R 18 W |
| NBI structure number | 8114 |
| Condition class | Fair |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | July 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 Cooper County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 70 E over Martins Br | 1992 | 32,786 | Fair |
| Is 70 E over UP RR | 1958 | 18,223 | Good |
| Is 70 E over Missouri Rvr Katy Trail | 2024 | 18,223 | Good |
| Is 70 W over UP RR | 1958 | 18,016 | Fair |
| Is 70 E over Lamine Rvr | 1962 | 16,583 | Fair |
| Is 70 E over Chouteau CR | 1992 | 16,583 | Fair |
All bridges nearby: Cooper County, MO bridge conditions · every bridge in Cooper County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.