US Bridges

US 29 over Mountain Creek

PoorPosted for load

Greenville County, South Carolina · 4.5 MI SW of Greer · Structure no. 000000000000934

Built
1939
86 years old, rebuilt 1974
Condition
Poor
inspected September 2024
Type
Tee Beam
Concrete
Length
147 ft
5 main spans
Daily traffic
47,300
2023 count
Owner
State
State Highway Agency

About this bridge

US 29 over Mountain Creek is a concrete tee beam carrying US 29 over Mountain Creek in Greenville County, South Carolina. It was built in 1939 and reconstructed in 1974, so it is 86 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. Its operating status is: posted for load restriction.

It carries about 47,300 vehicles a day, roughly 5% of them trucks, projected to reach 61,017 by 2043. The structure is 147 ft (44.7 m) long and 129 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesUS 29
CrossesMountain Creek
Location4.5 MI SW of Greer
RouteU.S. Route 29
Coordinates34.92354, -82.30625
Functional classUrban Other Principal Arterial

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.
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 protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionSeptember 2024
Inspection intervalevery 12 months
Operating statusPosted for load restriction
ScourFoundations stable; scour above top of footing
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry9: Superior to present desirable criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating38.3 US tons
Inventory rating22.8 US tons

Structure

Structure typeTee Beam
MaterialConcrete
DeckConcrete, cast-in-place
Main spans5
Design loadH 15
Structure length147 ft (44.7 m)
Longest span30 ft (9.1 m)
Deck width129 ft (39.2 m)
Roadway width116 ft (35.4 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic47,300 (2023)
Projected traffic61,017 by 2043
Trucks5%
Lanes on structure6
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesWaterway
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes

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$295,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was US 29 over Mountain Creek built?

It was built in 1939, making it 86 years old in 2025. It was reconstructed in 1974.

What condition is US 29 over Mountain Creek 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 September 2024.

How much traffic does US 29 over Mountain Creek carry?

About 47,300 vehicles per day (2023 count), of which roughly 5% are trucks.

How long is US 29 over Mountain Creek?

The structure is 147 ft (44.7 m) long with a longest span of 30 ft (9.1 m) and a deck 129 ft wide.

Who owns US 29 over Mountain Creek?

It is owned by the State Highway Agency.