US Bridges

Harrisville-Braxtn over Mill Creek

Good

Simpson County, Mississippi · Sec 10 T 2N R 3E B · Structure no. SA6400000000066

Built
1980
45 years old
Condition
Good
inspected January 2023
Type
Culvert
Concrete
Length
34 ft
2 main spans
Daily traffic
660
2020 count
Owner
County
County Highway Agency

About this bridge

Harrisville-Braxtn over Mill Creek is a concrete culvert carrying Harrisville-Braxtn over Mill Creek in Simpson County, Mississippi. It was built in 1980, so it is 45 years old, older 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 660 vehicles a day, roughly 8% of them trucks, projected to reach 990 by 2040. The structure is 34 ft (10.5 m) long. If it were closed, the detour would be 1.2 mi (2 km).

CarriesHarrisville-Braxtn
CrossesMill Creek
LocationSec 10 T 2N R 3E B
RouteCounty Highway 320
Coordinates32.02358, -89.978
Functional classRural Major Collector

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 protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionJanuary 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 alignment6: Equal to present minimum criteria
Operating rating86.8 US tons
Inventory rating51.9 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length34 ft (10.5 m)
Longest span16 ft (4.9 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic660 (2020)
Projected traffic990 by 2040
Trucks8%
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

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 Harrisville-Braxtn over Mill Creek built?

It was built in 1980, making it 45 years old in 2025.

What condition is Harrisville-Braxtn 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 2023.

How much traffic does Harrisville-Braxtn over Mill Creek carry?

About 660 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Harrisville-Braxtn over Mill Creek?

The structure is 34 ft (10.5 m) long with a longest span of 16 ft (4.9 m).

Who owns Harrisville-Braxtn over Mill Creek?

It is owned by the County Highway Agency.