US Bridges

S-37-66 over Beaver Dam Creek

Good

Oconee County, South Carolina · 10.2 MI S Seneca · Structure no. 000000000002224

Built
2002
23 years old
Condition
Good
inspected March 2025
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
110 ft
1 main span
Daily traffic
650
2023 count
Owner
State
State Highway Agency

About this bridge

S-37-66 over Beaver Dam Creek is a prestressed concrete stringer/multi-beam or girder carrying S-37-66 over Beaver Dam Creek in Oconee County, South Carolina. It was built in 2002, so it is 23 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 650 vehicles a day, roughly 12% of them trucks, projected to reach 904 by 2043. The structure is 110 ft (33.5 m) long and 37 ft wide. If it were closed, the detour would be 5 mi (8 km).

CarriesS-37-66
CrossesBeaver Dam Creek
Location10.2 MI S Seneca
RouteState Highway 66
Coordinates34.54054, -82.95774
Functional classRural Minor Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating65.4 US tons
Inventory rating50.4 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans1 (+2 approach)
Design loadHS 20
Structure length110 ft (33.5 m)
Longest span50 ft (15.2 m)
Deck width37 ft (11.2 m)
Roadway width34 ft (10.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic650 (2023)
Projected traffic904 by 2043
Trucks12%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was S-37-66 over Beaver Dam Creek built?

It was built in 2002, making it 23 years old in 2025.

What condition is S-37-66 over Beaver Dam Creek 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 March 2025.

How much traffic does S-37-66 over Beaver Dam Creek carry?

About 650 vehicles per day (2023 count), of which roughly 12% are trucks.

How long is S-37-66 over Beaver Dam Creek?

The structure is 110 ft (33.5 m) long with a longest span of 50 ft (15.2 m) and a deck 37 ft wide.

Who owns S-37-66 over Beaver Dam Creek?

It is owned by the State Highway Agency.