US Bridges

I-85 over Bromolow Creek

Good

Gwinnett County, Georgia · 3.4 MI E of Norcross · Structure no. 000000013500510

Built
1958
67 years old, rebuilt 1987
Condition
Good
inspected December 2023
Type
Culvert
Concrete
Length
39 ft
2 main spans
Daily traffic
307,000
2024 count
Owner
State
State Highway Agency

About this bridge

I-85 over Bromolow Creek is a concrete culvert carrying I-85 over Bromolow Creek in Gwinnett County, Georgia. It was built in 1958 and reconstructed in 1987, so it is 67 years old, older than the Georgia average of 47.5 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 307,000 vehicles a day, roughly 1% of them trucks, projected to reach 425,685 by 2032. The structure is 39 ft (11.9 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesI-85
CrossesBromolow Creek
Location3.4 MI E of Norcross
RouteInterstate 85
StateGeorgia
Coordinates33.94456, -84.14567
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection7 GoodSome minor problems.
Culvert7 GoodSome minor problems.
Last inspectionDecember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating110.1 US tons
Inventory rating110.1 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20 + Mod
Structure length39 ft (11.9 m)
Longest span12 ft (3.7 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic307,000 (2024)
Projected traffic425,685 by 2032
Trucks1%
Lanes on structure14
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
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 proposedNone recorded
Estimated improvement cost$977,000
NavigationNo navigation control on waterway

Frequently asked questions

When was I-85 over Bromolow Creek built?

It was built in 1958, making it 67 years old in 2025. It was reconstructed in 1987.

What condition is I-85 over Bromolow 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 December 2023.

How much traffic does I-85 over Bromolow Creek carry?

About 307,000 vehicles per day (2024 count), of which roughly 1% are trucks.

How long is I-85 over Bromolow Creek?

The structure is 39 ft (11.9 m) long with a longest span of 12 ft (3.7 m).

Who owns I-85 over Bromolow Creek?

It is owned by the State Highway Agency.