US Bridges

Polo Road over SR4000

Poor

Forsyth County, North Carolina · 1.1 Mi. E. Jct. NC67 · Structure no. 000000000670284

Built
1968
57 years old
Condition
Poor
inspected September 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
187 ft
4 main spans
Daily traffic
6,900
2021 count
Owner
State
State Highway Agency

About this bridge

Polo Road over SR4000 is a steel stringer/multi-beam or girder carrying Polo Road over SR4000 in Forsyth County, North Carolina. It was built in 1968, so it is 57 years old, older than the North Carolina average of 38.7 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.

It carries about 6,900 vehicles a day, roughly 7% of them trucks, projected to reach 13,800 by 2040. The structure is 187 ft (56.9 m) long and 58 ft wide. If it were closed, the detour would be 0.6 mi (1 km).

Location

Open in Google Maps
CarriesPolo Road
CrossesSR4000
Location1.1 Mi. E. Jct. NC67
RouteCity Street 0
CountyForsyth County
StateNorth Carolina
Coordinates36.13999, -80.27444
Functional classUrban Collector

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
Deck5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Superstructure4 PoorAdvanced section loss, deterioration, spalling or scour.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionSeptember 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation4: Meets minimum tolerable limits to be left in place as is
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59 US tons
Inventory rating35.9 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20 + Mod
Structure length187 ft (56.9 m)
Longest span51 ft (15.5 m)
Deck width58 ft (17.8 m)
Roadway width46 ft (14 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic6,900 (2021)
Projected traffic13,800 by 2040
Trucks7%
Lanes on structure3
Traffic directionTwo-way traffic
CarriesHighway and pedestrian
CrossesHighway
Detour if closed0.6 mi (1 km)
TollOn a free road
National Highway SystemNo

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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Polo Road over SR4000 built?

It was built in 1968, making it 57 years old in 2025.

What condition is Polo Road over SR4000 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 Polo Road over SR4000 carry?

About 6,900 vehicles per day (2021 count), of which roughly 7% are trucks.

How long is Polo Road over SR4000?

The structure is 187 ft (56.9 m) long with a longest span of 51 ft (15.5 m) and a deck 58 ft wide.

Who owns Polo Road over SR4000?

It is owned by the State Highway Agency.