US Bridges

S-29-471 over Br of Gills CR

Good

Lancaster County, South Carolina · City of Lancaster · Structure no. 000000000006317

Built
2018
7 years old
Condition
Good
inspected July 2023
Type
Slab
Prestressed Concrete
Length
70 ft
1 main span
Daily traffic
6,700
2023 count
Owner
State
State Highway Agency

About this bridge

S-29-471 over Br of Gills CR is a prestressed concrete slab carrying S-29-471 over Br of Gills CR in Lancaster County, South Carolina. It was built in 2018, so it is 7 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 9 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 6,700 vehicles a day, roughly 2% of them trucks, projected to reach 9,447 by 2043. The structure is 70 ft (21.3 m) long and 36 ft wide.

Location

Open in Google Maps
CarriesS-29-471
CrossesBr of Gills CR
LocationCity of Lancaster
RouteState Highway 471
CountyLancaster County
StateSouth Carolina
Coordinates34.72692, -80.7822
Functional classUrban Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck9 ExcellentNo problems noted.
Superstructure9 ExcellentNo problems noted.
Substructure9 ExcellentNo problems noted.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation9: Superior to present desirable criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating49.6 US tons
Inventory rating38.3 US tons

Structure

Structure typeSlab
MaterialPrestressed Concrete
DeckConcrete, precast panels
Main spans1
Design loadHL 93
Structure length70 ft (21.3 m)
Longest span70 ft (21.3 m)
Deck width36 ft (11 m)
Roadway width33 ft (10.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,700 (2023)
Projected traffic9,447 by 2043
Trucks2%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-29-471 over Br of Gills CR built?

It was built in 2018, making it 7 years old in 2025.

What condition is S-29-471 over Br of Gills CR in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in July 2023.

How much traffic does S-29-471 over Br of Gills CR carry?

About 6,700 vehicles per day (2023 count), of which roughly 2% are trucks.

How long is S-29-471 over Br of Gills CR?

The structure is 70 ft (21.3 m) long with a longest span of 70 ft (21.3 m) and a deck 36 ft wide.

Who owns S-29-471 over Br of Gills CR?

It is owned by the State Highway Agency.