US Bridges

I-85 over Muddy Ford RD (S-580)

Fair

Greenville County, South Carolina · 7.0 MI E of Greenville · Structure no. 000000000003291

Built
1960
65 years old, rebuilt 1986
Condition
Fair
inspected May 2024
Type
Frame
Concrete
Length
25 ft
2 main spans
Daily traffic
140,900
2023 count
Owner
State
State Highway Agency

About this bridge

I-85 over Muddy Ford RD (S-580) is a concrete frame carrying I-85 over Muddy Ford RD (S-580) in Greenville County, South Carolina. It was built in 1960 and reconstructed in 1986, 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 140,900 vehicles a day, roughly 20% of them trucks, projected to reach 201,487 by 2043. The structure is 25 ft (7.6 m) long and 158 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesI-85
CrossesMuddy Ford RD (S-580)
Location7.0 MI E of Greenville
RouteInterstate 85
CountyGreenville County
StateSouth Carolina
Coordinates34.85011, -82.27857
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMay 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation6: Equal to present minimum criteria
Deck geometry9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating44.6 US tons
Inventory rating26.8 US tons

Structure

Structure typeFrame
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadH 15
Structure length25 ft (7.6 m)
Longest span12 ft (3.7 m)
Deck width158 ft (48.2 m)
Roadway width158 ft (48.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic140,900 (2023)
Projected traffic201,487 by 2043
Trucks20%
Lanes on structure8
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$299,000 (2024 estimate)
NavigationNot applicable (no waterway)

Frequently asked questions

When was I-85 over Muddy Ford RD (S-580) built?

It was built in 1960, making it 65 years old in 2025. It was reconstructed in 1986.

What condition is I-85 over Muddy Ford RD (S-580) 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 May 2024.

How much traffic does I-85 over Muddy Ford RD (S-580) carry?

About 140,900 vehicles per day (2023 count), of which roughly 20% are trucks.

How long is I-85 over Muddy Ford RD (S-580)?

The structure is 25 ft (7.6 m) long with a longest span of 12 ft (3.7 m) and a deck 158 ft wide.

Who owns I-85 over Muddy Ford RD (S-580)?

It is owned by the State Highway Agency.