US 521 over Mill Branch

Fair Condition77 years old7,700 vehicles/day

Location

StateSouth Carolina
CountyClarendon
Location3mi N Of Manning
CarriesUS 521
CrossesMill Branch
Coordinates33.75129, -80.22124

Condition Ratings

Overall ConditionFair
Channel/Waterway5 (Fair)
Culvert6 (Satisfactory)
Scour Critical8 — Stable, low risk

Physical Characteristics

MaterialConcrete
DesignCulvert
Total Length24.9 ft (7.6 m)
Max Span12.1 ft (3.7 m)
Deck Width145.7 ft (44.4 m)
Deck Area337.4 sq m
Main Spans2
Year Built1949 (reconstructed 2005)

Traffic

Avg Daily Traffic7,700 (2023)
Truck Traffic20%
Lanes On Bridge5

Inspection & Ownership

Last Inspection124
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceHistorical significance is not determined
Structure Number000000000001611

Nearby Bridges

US 301 Con over Mill Creek 0.0 mi Fair I-95 SB over US 521-301 Con/scl Rr 1.1 mi Fair I-95 NB over US 521-301 Con/scl Rr 1.1 mi Fair I-95 SB over Pocotaligo Swamp (no. 3) 1.3 mi Fair I-95 NB over Pocotaligo Swamp (no. 3) 1.3 mi Fair I-95 SB over Pocotaligo River (no. 2) 1.5 mi Fair I-95 NB over Pocotaligo River (no. 2) 1.5 mi Fair S-14-49 over I-95 1.7 mi Fair I-95 SB over Pocotaligo Swamp (no. 1) 1.7 mi Fair I-95 NB over Pocotaligo Swamp (no. 1) 1.7 mi Fair