US Bridges

S-3-88 over Bentley Branch

Poor

Allendale County, South Carolina · 8MI NW Allendale · Structure no. 000000000003568

Built
1961
64 years old
Condition
Poor
inspected May 2024
Type
Slab
Concrete
Length
45 ft
3 main spans
Daily traffic
125
2023 count
Owner
State
State Highway Agency

About this bridge

S-3-88 over Bentley Branch is a concrete slab carrying S-3-88 over Bentley Branch in Allendale 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 poor condition with a lowest component rating of 4 out of 9. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

It carries about 125 vehicles a day, roughly 8% of them trucks, projected to reach 183 by 2043. The structure is 45 ft (13.7 m) long and 28 ft wide. If it were closed, the detour would be 11.8 mi (19 km).

Location

Open in Google Maps
CarriesS-3-88
CrossesBentley Branch
Location8MI NW Allendale
RouteState Highway 88
CountyAllendale County
StateSouth Carolina
Coordinates33.08609, -81.40893
Functional classRural Major Collector

Condition and inspection

Poor

The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMay 2024
Inspection intervalevery 12 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating34 US tons
Inventory rating20.4 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadH 10
Structure length45 ft (13.7 m)
Longest span15 ft (4.6 m)
Deck width28 ft (8.4 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2023)
Projected traffic183 by 2043
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed11.8 mi (19 km)
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 proposedRehabilitation because of general structure deterioration or inadequate strength
Estimated improvement cost$69,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was S-3-88 over Bentley Branch built?

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

What condition is S-3-88 over Bentley Branch in?

The National Bridge Inventory rates it in poor condition. The lowest-rated primary component is rated 4 or below, indicating advanced deterioration. Poor does not mean unsafe; such bridges are inspected more often and may carry load restrictions. The last reported inspection was in May 2024.

How much traffic does S-3-88 over Bentley Branch carry?

About 125 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is S-3-88 over Bentley Branch?

The structure is 45 ft (13.7 m) long with a longest span of 15 ft (4.6 m) and a deck 28 ft wide.

Who owns S-3-88 over Bentley Branch?

It is owned by the State Highway Agency.