N 1500(Lk Estates) over Lake Alvamar West Trib
Douglas County, Kansas · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- N 1500(Lk Estates) over Lake Alvamar West Trib in Douglas County, Kansas, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 7 (good condition) on the 0-9 scale.
- It was built in 2016, making it 9 years old at the 2025 inventory.
- It carries about 600 vehicles a day (traffic count year 2015).
- Its listed owner is a city or municipal highway agency.
- It is one of 239 of the 314 inventoried bridges in Douglas County rated good (76.1%); 3 (1.0%) are rated poor.
- A good rating means every major component - deck, superstructure, substructure, or culvert - is rated 7 or higher on FHWA's 0-9 scale: no more than minor problems.
View this bridge on a map → (38.95692, -95.33222)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 7 | Good condition |
| Superstructure | 7 | Good condition |
| Substructure | 8 | Very good condition |
Bridge details
| Structure | Concrete slab |
| Length | about 54 ft |
| Location | N 1500/LakeAlvamar W Trib |
| NBI structure number | 515350230000015 |
| Condition class | Good |
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.