S-31-313 over Beaver Dam Ck (2)
Lee County, South Carolina · rated Good in the 2025 National Bridge Inventory
United States Bridge Conditions2025 National Bridge Inventory, FHWACompiled
- S-31-313 over Beaver Dam Ck (2) in Lee County, South Carolina, is rated in good condition in the 2025 National Bridge Inventory (as of ).
- Its lowest-rated component is the deck, rated 8 (very good condition) on the 0-9 scale.
- It was built in 2020, making it 5 years old at the 2025 inventory.
- It carries about 300 vehicles a day (traffic count year 2023).
- Its listed owner is the state highway agency.
- It is one of 42 of the 91 inventoried bridges in Lee County rated good (46.2%); 2 (2.2%) 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 → (34.18787, -80.38948)
Component ratings
| Component | Rating (2024) | Rating (2025) | FHWA scale meaning |
|---|---|---|---|
| Deck | 8 | 8 | Very good condition |
| Superstructure | 8 | 8 | Very good condition |
| Substructure | 8 | 8 | Very good condition |
Bridge details
| Structure | Prestressed concrete slab |
| Length | about 49 ft |
| Location | 5 Mi NW of Manville |
| NBI structure number | 000000000010315 |
| 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 South Carolina department of transportation.
Busiest bridges in Lee County
| Bridge | Built | Vehicles/day | Condition |
|---|---|---|---|
| I-20 over Laws Branch | 1972 | 29,500 | Fair |
| I-20 over Mill Branch | 1972 | 29,500 | Fair |
| I-20 EB over Scape Ore Swamp | 1971 | 15,350 | Fair |
| I-20 EB over U.S. 15 | 1971 | 15,350 | Good |
| I-20 WB over Scape Ore Swamp | 1971 | 15,350 | Fair |
| I-20 WB over US 15 | 1971 | 15,350 | Good |
All bridges nearby: Lee County, SC bridge conditions · every bridge in Lee County · South Carolina bridges.
Background: how bridge ratings work · what "poor" and "structurally deficient" actually mean · how often bridges are inspected.