Lrd Grouse Drive over Ih Ush 51-ih 39
Marquette County, Wisconsin · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Lrd Grouse Drive over Ih Ush 51-ih 39 in Marquette County, Wisconsin, 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 1984 and reconstructed in 2014, making it 41 years old at the 2025 inventory.
- It carries about 150 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 29 of the 81 inventoried bridges in Marquette County rated good (35.8%); 5 (6.2%) 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 April 2022, on a 48-month routine inspection cycle.
- 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 → (43.64974, -89.47064)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 7 | 7 | Good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 7 | 7 | Good condition |
Bridge details
| Structure | Continuous steel stringer or multi-beam girder |
| Length | about 242 ft |
| Location | at Jct Ush 51 |
| NBI structure number | B39001600000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | April 2022 |
| Inspection interval (item 91) | 48 months |
| Scour (item 113) | N: not over a waterway |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.
Busiest bridges in Marquette County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Ih Ush 51-ih 39 over Chapman Creek | 1985 | 17,800 | Fair |
| Ih Ush51-ih39 NB over Cth O | 1983 | 15,800 | Fair |
| Ih Ush51-ih39 SB over Cth O | 1983 | 15,800 | Fair |
| Ih Ush 51 - Ih 39 over Sth 23/82 EB & WB | 2016 | 14,700 | Good |
| Ih Ush51-ih39 NB over Lrd Dover Court | 1987 | 13,000 | Good |
| Ih Ush51-ih39 SB over Lrd Fawn Ave | 1966 | 12,800 | Fair |
All bridges nearby: Marquette County, WI bridge conditions · every bridge in Marquette County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.