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S-20-20 over Hogfork Branch

Fairfield County, South Carolina · rated Good in the 2025 National Bridge Inventory

United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled August 20, 2026

S-20-20 over Hogfork Branch in Fairfield County, South Carolina, is rated in good condition in the 2025 National Bridge Inventory (as of August 20, 2026).
Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
It was built in 2024, making it 1 years old at the 2025 inventory.
It carries about 100 vehicles a day (traffic count year 2023).
Its listed owner is the state highway agency.
It is one of 49 of the 139 inventoried bridges in Fairfield County rated good (35.3%); 8 (5.8%) are rated poor.
Its traffic status in the 2025 inventory is open, no restriction (NBI item 41).
It does not appear under this structure number in the 2024 inventory (a new or renumbered structure).
Its most recent inspection on record is dated October 2024, 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.

Component ratings


Structure	Prestressed concrete multiple box beam
Length	about 69 ft
Location	1.5 Mi E of I77 Exit 46
NBI structure number	000000000010944
Condition class	Good
Traffic status (item 41)	Open, no restriction
Last inspection (item 90)	October 2024
Inspection interval (item 91)	24 months
Scour (item 113)	6: scour evaluation not yet made

Source: FHWA National Bridge Inventory, 2025 data as reported by the South Carolina department of transportation.

Bridge	Built	Vehicles/day	Condition
I-77 over Center Creek	1978	53,600	Good
I-77 over Big Cedar Creek	1978	53,600	Fair
I-77 over Dutchmans Creek	1978	48,900	Fair
I-77 NB over Sc 34	1978	24,450	Good
I-77 SB over Sc 34	1978	24,450	Good
I-77 Nbl over Big Wateree Ck	1979	24,300	Fair