I-77 Nbl over I-20 & I-20 Ramp

Good Condition41 years old47,200 vehicles/day

Location

StateSouth Carolina
CountyRichland
Location9 Mi E Columbia
CarriesI-77 Nbl
CrossesI-20 & I-20 Ramp
Coordinates34.06771, -80.92212

Condition Ratings

Overall ConditionGood
Deck7 (Good)
Superstructure7 (Good)
Substructure7 (Good)
Scour CriticalNot applicable

Physical Characteristics

MaterialSteel Continuous
DesignStringer/Multi-beam
Total Length369.8 ft (112.7 m)
Max Span91.9 ft (28 m)
Deck Width62.7 ft (19.1 m)
Deck Area2152.6 sq m
Main Spans5
Year Built1985 (reconstructed 2018)

Traffic

Avg Daily Traffic47,200 (2023)
Truck Traffic16%
Lanes On Bridge3
Lanes Under Bridge8

Inspection & Ownership

Last Inspection124
Inspection FrequencyEvery 24 months
OwnerState Highway Agency
Historical SignificanceBridge is not eligible for the National Register
Structure Number000000000007930

Nearby Bridges

I-77 SB over I-20 & Ramp Off I-20 0.0 mi Good Ramp Off I-77 NB over I-20 & I-77 & I-77 SB 0.1 mi Good I-77 NB over Ramp On I-77 SB 0.1 mi Good I-77 SB over Ramp On I-77 SB 0.1 mi Good Ramp Off I-77 SB over I-20/RAMP Off I-20 EB 0.1 mi Good S-40-1201 over I-77 0.3 mi Fair Ramp Off I-20 WB over Ramp On I-20 WB 0.3 mi Good I-77 SB over S-40-1196 0.4 mi Fair I-77 NB over S-40-1196 0.4 mi Fair S-40-1196 over I-20 0.4 mi Good