US Bridges

C-4-247 over Broadway Lake Spillway

Fair

Anderson County, South Carolina · 5.1 MI SE Anderson · Structure no. 000000000003175

Built
1960
65 years old
Condition
Fair
inspected October 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
67 ft
2 main spans
Daily traffic
1,250
2023 count
Owner
County
County Highway Agency

About this bridge

C-4-247 over Broadway Lake Spillway is a steel stringer/multi-beam or girder carrying C-4-247 over Broadway Lake Spillway in Anderson County, South Carolina. It was built in 1960, so it is 65 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 1,250 vehicles a day, roughly 4% of them trucks, projected to reach 1,538 by 2043. The structure is 67 ft (20.4 m) long and 19 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesC-4-247
CrossesBroadway Lake Spillway
Location5.1 MI SE Anderson
RouteCounty Highway 247
CountyAnderson County
StateSouth Carolina
Coordinates34.44754, -82.58794
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionOctober 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating47.2 US tons
Inventory rating28.2 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans2
Design loadH 10
Structure length67 ft (20.4 m)
Longest span40 ft (12.2 m)
Deck width19 ft (5.9 m)
Roadway width18 ft (5.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,250 (2023)
Projected traffic1,538 by 2043
Trucks4%
Lanes on structure2
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$263,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was C-4-247 over Broadway Lake Spillway built?

It was built in 1960, making it 65 years old in 2025.

What condition is C-4-247 over Broadway Lake Spillway 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 October 2024.

How much traffic does C-4-247 over Broadway Lake Spillway carry?

About 1,250 vehicles per day (2023 count), of which roughly 4% are trucks.

How long is C-4-247 over Broadway Lake Spillway?

The structure is 67 ft (20.4 m) long with a longest span of 40 ft (12.2 m) and a deck 19 ft wide.

Who owns C-4-247 over Broadway Lake Spillway?

It is owned by the County Highway Agency.