SR 37 over Lost River
Orange County, Indiana · rated Fair in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 37 over Lost River in Orange County, Indiana, is rated in fair condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 5 (fair condition) on the 0-9 scale.
- It was built in 1921 and reconstructed in 2001, making it 104 years old at the 2025 inventory.
- It carries about 7,011 vehicles a day (traffic count year 2004).
- Its listed owner is the state highway agency.
- It is one of 73 of the 136 inventoried bridges in Orange County rated fair (53.7%); 14 (10.3%) are rated poor.
- A fair rating means the lowest-rated major component scores 5 or 6 on FHWA's 0-9 scale: some deterioration or minor section loss, but the structure is sound. It is the middle class, not a warning.
View this bridge on a map → (38.61007, -86.45802)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Deck | 6 | Satisfactory condition |
| Superstructure | 5 | Fair condition |
| Substructure | 7 | Good condition |
Bridge details
| Structure | Concrete deck arch |
| Length | about 158 ft |
| Location | 03.64 S SR 337 |
| NBI structure number | 011910 |
| Condition class | Fair |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in Orange County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR 56 over French Lick Creek | 1952 | 16,310 | Fair |
| SR 56 over Lost River | 1923 | 11,870 | Fair |
| SR 37 over Sulphur Creek | 1928 | 9,827 | Fair |
| US 150 over Lick Creek | 1923 | 8,180 | Fair |
| US 150 over Lick Creek | 2013 | 8,180 | Good |
| US 150 over Branch Lick Creek | 1994 | 7,756 | Fair |
All bridges nearby: Orange County, IN bridge conditions · every bridge in Orange County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.