3300 RD Mile 26 over Sycamore Creek
Montgomery County, Kansas · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- 3300 RD Mile 26 over Sycamore Creek in Montgomery County, Kansas, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 3 (serious condition) on the 0-9 scale.
- It was built in 1920, making it 105 years old at the 2025 inventory.
- It carries about 58 vehicles a day (traffic count year 2010).
- Its listed owner is the county highway agency.
- It is one of 18 of the 326 inventoried bridges in Montgomery County rated poor (5.5%); 18 (5.5%) 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 March 2024, on a 12-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 → (37.36777, -95.76461)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 3 | 3 | Serious condition |
| Substructure | 5 | 5 | Fair condition |
Bridge details
| Structure | Steel through truss |
| Length | about 132 ft |
| Location | 2.8N 3.0W of Sycamore |
| NBI structure number | 000000000630670 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | March 2024 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
| Fracture critical (item 92A) | Yes |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Montgomery County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US166 US169 Hwy over Verdigris River | 1948 | 10,188 | Good |
| US75 US160 Hwy over UP RR 20TH ST & Drg. | 1940 | 8,501 | Good |
| US169 Hwy over Onion Creek Overflow | 1988 | 6,903 | Good |
| US169 Hwy over Onion Creek | 1988 | 6,903 | Good |
| Eighth Street; 001 over Sycamore Creek | 1984 | 5,950 | Fair |
| US160 K96 Hwy over Mouse Creek | 1960 | 5,920 | Fair |
All bridges nearby: Montgomery County, KS bridge conditions · every bridge in Montgomery County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.