Irving Hill Road over US40/US59 Hwy
Douglas County, Kansas · rated Poor in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Irving Hill Road over US40/US59 Hwy in Douglas County, Kansas, is rated in poor condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 4 (poor condition) on the 0-9 scale.
- It was built in 1966, making it 59 years old at the 2025 inventory.
- Its listed owner is the state highway agency.
- It is one of 3 of the 314 inventoried bridges in Douglas County rated poor (1.0%); 3 (1.0%) 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 2025, on a 12-month routine inspection cycle.
- 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 → (38.95333, -95.26028)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 4 | 4 | Poor condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 159 ft |
| Location | 0.75 Mi N K10 |
| NBI structure number | 999905900230221 |
| Condition class | Poor |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | January 2025 |
| Inspection interval (item 91) | 12 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Kansas department of transportation.
Busiest bridges in Douglas County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| 23rd Street over Frontage Road | 2013 | 28,300 | Good |
| K-10 Hwy over Us40/us-59 Hwy | 1996 | 23,800 | Good |
| Us40-us59 Hwy over NB Access to Kta 40 | 1956 | 22,877 | Fair |
| I-70 Hwy EB (kta) over US-40 Hwy | 2006 | 22,636 | Good |
| I-70 Hwy WB (kta) over US-40 Hwy | 2006 | 22,636 | Good |
| I-70 Hwy EB (kta) over Local Road | 2006 | 22,636 | Good |
All bridges nearby: Douglas County, KS bridge conditions · every bridge in Douglas County · Kansas bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.