Lrd Island Circle over Unknown Creek
Door County, Wisconsin · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Lrd Island Circle over Unknown Creek in Door County, Wisconsin, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 2006, making it 19 years old at the 2025 inventory.
- It carries about 100 vehicles a day (traffic count year 2022).
- Its listed owner is a town or township highway agency.
- It is one of 15 of the 33 inventoried bridges in Door County rated good (45.5%); 1 (3.0%) 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 → (44.87508, -87.46036)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Aluminum or iron culvert |
| Length | about 30 ft |
| Location | 0.1M N Jct High Cliff Pk |
| NBI structure number | B15003600000000 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.
Busiest bridges in Door County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sth 42 - Sth 57 over Sturgeon Bay | 1978 | 14,200 | Fair |
| Sth 42 - Sth 57 over Sturgeon Bay | 1978 | 12,500 | Fair |
| Sth 42 - Sth 57 over Sturgeon Bay | 1978 | 12,500 | Fair |
| Sth 42 - Sth 57 over Sturgeon Bay | 1978 | 12,500 | Fair |
| Sth 42 - Sth 57 over Lrd Memorial Dr | 1978 | 12,500 | Fair |
| Sth 57 NB over Fabry CR | 2008 | 11,200 | Fair |
All bridges nearby: Door County, WI bridge conditions · every bridge in Door County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.