Cth S over Grand River
Green Lake County, Wisconsin · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Cth S over Grand River in Green Lake County, Wisconsin, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 9 (excellent condition) on the 0-9 scale.
- It was built in 2019, making it 6 years old at the 2025 inventory.
- It carries about 146 vehicles a day (traffic count year 2022).
- Its listed owner is the county highway agency.
- It is one of 25 of the 48 inventoried bridges in Green Lake County rated good (52.1%); 2 (4.2%) 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 May 2023, on a 24-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 → (43.70634, -88.92461)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 9 | 9 | Excellent condition |
| Superstructure | 9 | 9 | Excellent condition |
| Substructure | 9 | 9 | Excellent condition |
Bridge details
| Structure | Prestressed concrete multiple box beam |
| Length | about 42 ft |
| Location | 0.9M W Jct Cth Q |
| NBI structure number | B24004400000000 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | May 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 5: foundations stable, scour within the limits of the footing or piles |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Wisconsin department of transportation.
Busiest bridges in Green Lake County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| Sth 49-huron St over Fox River | 2004 | 9,200 | Fair |
| Sth 23 over Puchyan River | 1966 | 7,400 | Fair |
| Sth 23-sth 73-main over Fox River | 1984 | 7,400 | Fair |
| Sth 49 over Br Fox River | 1957 | 3,400 | Fair |
| Sth 49 over Br Fox River | 1957 | 3,400 | Fair |
| Lrd Franklin St. / over Fox River | 2003 | 3,300 | Good |
All bridges nearby: Green Lake County, WI bridge conditions · every bridge in Green Lake County · Wisconsin bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.