US Bridges

Iron Mill Road over Cox Creek

Good

Mecklenburg County, Virginia · .59 FR 4 & 1.01 to 669 · Structure no. 000000000023918

Built
1994
31 years old
Condition
Good
inspected June 2024
Type
Stringer/Multi-beam or Girder
Steel
Length
83 ft
1 main span
Daily traffic
124
2022 count
Owner
State
State Highway Agency

About this bridge

Iron Mill Road over Cox Creek is a steel stringer/multi-beam or girder carrying Iron Mill Road over Cox Creek in Mecklenburg County, Virginia. It was built in 1994, so it is 31 years old, younger than the Virginia average of 50.7 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 124 vehicles a day, projected to reach 138 by 2042. The structure is 83 ft (25.2 m) long and 28 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

CarriesIron Mill Road
CrossesCox Creek
Location.59 FR 4 & 1.01 to 669
RouteCounty Highway 708
Coordinates36.66247, -78.27807
Functional classRural Local

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating88 US tons
Inventory rating68 US tons

Structure

MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadHS 20 + Mod
Structure length83 ft (25.2 m)
Longest span80 ft (24.4 m)
Deck width28 ft (8.4 m)
Roadway width24 ft (7.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic124 (2022)
Projected traffic138 by 2042
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 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 proposedOther structural work, including hydraulic replacements
Estimated improvement cost$202 million
NavigationNo navigation control on waterway

Frequently asked questions

When was Iron Mill Road over Cox Creek built?

It was built in 1994, making it 31 years old in 2025.

What condition is Iron Mill Road over Cox 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 June 2024.

How much traffic does Iron Mill Road over Cox Creek carry?

About 124 vehicles per day (2022 count).

How long is Iron Mill Road over Cox Creek?

The structure is 83 ft (25.2 m) long with a longest span of 80 ft (24.4 m) and a deck 28 ft wide.

Who owns Iron Mill Road over Cox Creek?

It is owned by the State Highway Agency.