US Bridges

Duncan Hill RD over Mill Creek

Good

Wayne County, Mississippi · Sec 7 T 8N R 5W · Structure no. SA7700000000072

Built
1997
28 years old
Condition
Good
inspected January 2025
Type
Culvert
Concrete
Length
35 ft
2 main spans
Daily traffic
100
2025 count
Owner
County
County Highway Agency

About this bridge

Duncan Hill RD over Mill Creek is a concrete culvert carrying Duncan Hill RD over Mill Creek in Wayne County, Mississippi. It was built in 1997, so it is 28 years old, younger than the Mississippi average of 38.9 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 100 vehicles a day, roughly 8% of them trucks, projected to reach 150 by 2045. The structure is 35 ft (10.7 m) long. If it were closed, the detour would be 6.8 mi (11 km).

CarriesDuncan Hill RD
CrossesMill Creek
LocationSec 7 T 8N R 5W
RouteCounty Highway 34
Coordinates31.67417, -88.52869
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
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating108 US tons
Inventory rating71.7 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length35 ft (10.7 m)
Longest span14 ft (4.3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic100 (2025)
Projected traffic150 by 2045
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.8 mi (11 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Duncan Hill RD over Mill Creek built?

It was built in 1997, making it 28 years old in 2025.

What condition is Duncan Hill RD over Mill 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 January 2025.

How much traffic does Duncan Hill RD over Mill Creek carry?

About 100 vehicles per day (2025 count), of which roughly 8% are trucks.

How long is Duncan Hill RD over Mill Creek?

The structure is 35 ft (10.7 m) long with a longest span of 14 ft (4.3 m).

Who owns Duncan Hill RD over Mill Creek?

It is owned by the County Highway Agency.