Sycamore St over Mna RR
Jasper County, Missouri · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Sycamore St over Mna RR in Jasper County, Missouri, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 2 (critical condition) on the 0-9 scale.
- It was built in 1920, making it 105 years old at the 2025 inventory.
- It carries about 200 vehicles a day (traffic count year 2023).
- It is one of 57 of the 472 inventoried bridges in Jasper County rated poor (12.1%); 57 (12.1%) are rated poor.
- Its traffic status in the 2025 inventory is closed to all traffic (NBI item 41).
- Its condition class and component ratings are unchanged from the 2024 inventory.
- Its most recent inspection on record is dated February 2015, on a 24-month routine inspection cycle.
- It has fracture-critical members (NBI item 92A): steel tension members without a redundant load path, which get their own scheduled inspections.
- A poor rating means at least one major component - deck, superstructure, or substructure - is rated 4 or lower on FHWA's 0-9 scale. It does not by itself mean the bridge is unsafe; bridges judged unsafe are closed or load-restricted by their owners.
View this bridge on a map → (37.17376, -94.31851)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 2 | 2 | Critical condition |
| Substructure | 6 | 6 | Satisfactory condition |
Bridge details
| Structure | Steel deck truss |
| Length | about 39 ft |
| Location | S 4 T 28 N R 31 W |
| NBI structure number | 14655 |
| Condition class | Poor |
| Traffic status (item 41) | Closed to all traffic |
| Last inspection (item 90) | February 2015 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | N: not over a waterway |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Missouri department of transportation.
Busiest bridges in Jasper County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Is 44 E over Fidelity CR | 1926 | 34,661 | Fair |
| Is 44 E over Br Center CR | 1962 | 31,576 | Fair |
| Is 44 E over Br Center CR | 1962 | 31,393 | Fair |
| Lp 49 S over Turkey CR | 1957 | 27,243 | Poor |
| Lp 49 S over Joplin CR | 2007 | 23,568 | Good |
| Lp 49 S over Cpkc RR | 2022 | 23,568 | Good |
All bridges nearby: Jasper County, MO bridge conditions · every bridge in Jasper County · Missouri bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.