Springtown Road over Cotton Branch
Knox County, Indiana · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- Springtown Road over Cotton Branch in Knox County, Indiana, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the superstructure, rated 7 (good condition) on the 0-9 scale.
- It was built in 2013, making it 12 years old at the 2025 inventory.
- It carries about 130 vehicles a day (traffic count year 2015).
- Its listed owner is the county highway agency.
- It is one of 117 of the 290 inventoried bridges in Knox County rated good (40.3%); 13 (4.5%) 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 September 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 → (38.80477, -87.43683)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 7 | 7 | Good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Steel stringer or multi-beam girder |
| Length | about 39 ft |
| Location | 00.37 E Emison Mill Rd |
| NBI structure number | 4200526 |
| Condition class | Good |
| Traffic status (item 41) | Open, no restriction |
| Last inspection (item 90) | September 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 Indiana department of transportation.
Busiest bridges in Knox County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| US 41 NB over 2 City Streets CSX RR | 1961 | 21,710 | Good |
| US 41 SB over 2 City Streets CSX RR | 1961 | 21,710 | Good |
| US 41 NB (middle) over US 50 WB Ramp to US 41 S | 1967 | 19,317 | Good |
| Hart Street over US 41 Nb/sb | 1967 | 17,173 | Fair |
| US 41 NB over Snapp Creek | 1963 | 15,500 | Good |
| US 41 SB over Snapp Creek | 1963 | 15,500 | Good |
All bridges nearby: Knox County, IN bridge conditions · every bridge in Knox County · Indiana bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.