E 56TH Dd.0-28.1t over Deep Creek
Riley County, Kansas · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- E 56TH Dd.0-28.1t over Deep Creek in Riley 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 10 vehicles a day (traffic count year 2004).
- Its listed owner is the county highway agency.
- It is one of 10 of the 225 inventoried bridges in Riley County rated poor (4.4%); 10 (4.4%) 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 December 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 → (39.15882, -96.40738)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 5 | 5 | Fair condition |
| Superstructure | 3 | 3 | Serious condition |
| Substructure | 4 | 4 | Poor condition |
Bridge details
| Structure | Steel through truss |
| Length | about 81 ft |
| Location | 1.4S 8.4E of Manhattan |
| NBI structure number | 000810919004161 |
| Condition class | Poor |
| Traffic status (item 41) | Posted for load |
| Last inspection (item 90) | December 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 Riley County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| K-113 Hwy over Wildcat Creek | 1993 | 22,777 | Good |
| K113 Hwy over Anderson Ave | 1968 | 16,683 | Good |
| Kimball Ave over Drainage Ditch | 2021 | 11,780 | Good |
| K-18 over Wildcat Creek | 2021 | 11,589 | Good |
| K-18 Hwy WB over K-113 Hwy | 2007 | 11,539 | Good |
| K-18 Hwy EB over K-113 Hwy | 2004 | 11,539 | Good |
All bridges nearby: Riley County, KS bridge conditions · every bridge in Riley County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.