US Bridges

C-38-3277 over Snake Swamp

PoorPosted for load

Orangeburg County, South Carolina · 4MI N of COPE_(OC-2121) · Structure no. 000000000007281

Built
1979
46 years old
Condition
Poor
inspected August 2024
Type
Girder and Floorbeam System
Steel
Length
41 ft
2 main spans
Daily traffic
125
2023 count
Owner
County
County Highway Agency

About this bridge

C-38-3277 over Snake Swamp is a steel girder and floorbeam system carrying C-38-3277 over Snake Swamp in Orangeburg County, South Carolina. It was built in 1979, so it is 46 years old, younger 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. Its operating status is: posted for load restriction.

It carries about 125 vehicles a day, roughly 5% of them trucks, projected to reach 160 by 2043. The structure is 41 ft (12.5 m) long and 18 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesC-38-3277
CrossesSnake Swamp
Location4MI N of COPE_(OC-2121)
RouteCounty Highway 3277
Coordinates33.41879, -81.00494
Functional classRural Local

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
Deck4 PoorAdvanced section loss, deterioration, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation2: Basically intolerable, requiring high priority of replacement
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating5.4 US tons
Inventory rating3.2 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length41 ft (12.5 m)
Longest span21 ft (6.4 m)
Deck width18 ft (5.6 m)
Roadway width18 ft (5.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic125 (2023)
Projected traffic160 by 2043
Trucks5%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$230,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-38-3277 over Snake Swamp built?

It was built in 1979, making it 46 years old in 2025.

What condition is C-38-3277 over Snake Swamp 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 August 2024.

How much traffic does C-38-3277 over Snake Swamp carry?

About 125 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is C-38-3277 over Snake Swamp?

The structure is 41 ft (12.5 m) long with a longest span of 21 ft (6.4 m) and a deck 18 ft wide.

Who owns C-38-3277 over Snake Swamp?

It is owned by the County Highway Agency.