SR 20 over Mill Branch
Liberty County, Florida · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- SR 20 over Mill Branch in Liberty County, Florida, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the culvert, rated 7 (good condition) on the 0-9 scale.
- It was built in 1937, making it 88 years old at the 2025 inventory.
- It carries about 4,500 vehicles a day (traffic count year 2022).
- Its listed owner is the state highway agency.
- It is one of 15 of the 77 inventoried bridges in Liberty County rated good (19.5%); 12 (15.6%) are rated poor.
- 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 → (30.42919, -84.93543)
Component ratings
| Component | Rating (2025) | FHWA scale meaning |
|---|---|---|
| Culvert | 7 | Good condition |
Bridge details
| Structure | Concrete culvert |
| Length | about 43 ft |
| Location | 2.42 Mi. E. of SR-12 |
| NBI structure number | 560014 |
| Condition class | Good |
Source: FHWA National Bridge Inventory, 2025 data as reported by the Florida department of transportation.
Busiest bridges in Liberty County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| SR20 over Telogia Creek Relief | 1990 | 4,500 | Good |
| SR20 over Telogia Creek | 1990 | 4,500 | Fair |
| SR20 over East Pittman Creek | 1997 | 4,200 | Fair |
| SR20 over West Pittman Creek | 1997 | 4,200 | Fair |
| SR20 over Ochlocknee R Relief | 1997 | 4,200 | Fair |
| SR20 over Blue Creek | 1952 | 3,900 | Fair |
All bridges nearby: Liberty County, FL bridge conditions · every bridge in Liberty County · Florida bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.