US Bridges

Sc 27 over I-26

Fair

Berkeley County, South Carolina · 14MI NW Summerville · Structure no. 000000000003596

Built
1961
64 years old
Condition
Fair
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
262 ft
5 main spans
Daily traffic
2,700
2023 count
Owner
State
State Highway Agency

About this bridge

Sc 27 over I-26 is a prestressed concrete stringer/multi-beam or girder carrying Sc 27 over I-26 in Berkeley County, South Carolina. It was built in 1961, so it is 64 years old, older than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 2,700 vehicles a day, roughly 9% of them trucks, projected to reach 3,699 by 2043. The structure is 262 ft (79.9 m) long and 33 ft wide.

CarriesSc 27
CrossesI-26
Location14MI NW Summerville
RouteState Highway 27
Coordinates33.13694, -80.31028
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating65 US tons
Inventory rating30 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans5
Design loadHS 20 + Mod
Structure length262 ft (79.9 m)
Longest span54 ft (16.5 m)
Deck width33 ft (10.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,700 (2023)
Projected traffic3,699 by 2043
Trucks9%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Sc 27 over I-26 built?

It was built in 1961, making it 64 years old in 2025.

What condition is Sc 27 over I-26 in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in September 2023.

How much traffic does Sc 27 over I-26 carry?

About 2,700 vehicles per day (2023 count), of which roughly 9% are trucks.

How long is Sc 27 over I-26?

The structure is 262 ft (79.9 m) long with a longest span of 54 ft (16.5 m) and a deck 33 ft wide.

Who owns Sc 27 over I-26?

It is owned by the State Highway Agency.