CR 550S over Six Mile Creek
Henry County, Indiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- CR 550S over Six Mile Creek in Henry County, Indiana, 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 1990, making it 35 years old at the 2025 inventory.
- It carries about 125 vehicles a day (traffic count year 2019).
- Its listed owner is the county highway agency.
- It is one of 66 of the 206 inventoried bridges in Henry County rated good (32.0%); 6 (2.9%) 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 August 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 → (39.852, -85.59455)
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 | Prestressed concrete multiple box beam |
| Length | about 43 ft |
| Location | 00.15 W of CR 1100 W |
| NBI structure number | 3300148 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | August 2023 |
| Inspection interval (item 91) | 24 months |
| Scour (item 113) | 8: foundations stable, scour above the top of the footing |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Indiana department of transportation.
Busiest bridges in Henry County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-70 EB over Flatrock River | 1964 | 21,894 | Good |
| I-70 WB over Flatrock River | 1964 | 21,894 | Good |
| I-70 EB over Breezer Branch CR | 1965 | 21,661 | Fair |
| I-70 WB over Breezer Branch CR | 1965 | 21,661 | Fair |
| I-70 EB over CR 725 E Lick Br CR | 1965 | 19,818 | Fair |
| I-70 WB over CR 725 E Lick Br CR | 1965 | 19,818 | Fair |
All bridges nearby: Henry County, IN bridge conditions · every bridge in Henry County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.