US Bridges

Co.Road 321 over Morris Creek

Fair

Lafayette County, Mississippi · Sec 20 T 9S R 3W · Structure no. SA3600000000100

Built
2001
24 years old
Condition
Fair
inspected February 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
102 ft
3 main spans
Daily traffic
150
2022 count
Owner
County
County Highway Agency

About this bridge

Co.Road 321 over Morris Creek is a prestressed concrete stringer/multi-beam or girder carrying Co.Road 321 over Morris Creek in Lafayette County, Mississippi. It was built in 2001, so it is 24 years old, younger than the Mississippi average of 38.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 150 vehicles a day, roughly 4% of them trucks, projected to reach 225 by 2042. The structure is 102 ft (31.1 m) long and 29 ft wide. If it were closed, the detour would be 6.8 mi (11 km).

CarriesCo.Road 321
CrossesMorris Creek
LocationSec 20 T 9S R 3W
RouteCounty Highway 123
Coordinates34.28297, -89.54388
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
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 rating66.8 US tons
Inventory rating38.3 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length102 ft (31.1 m)
Longest span40 ft (12.2 m)
Deck width29 ft (8.8 m)
Roadway width26 ft (8 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic150 (2022)
Projected traffic225 by 2042
Trucks4%
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Co.Road 321 over Morris Creek built?

It was built in 2001, making it 24 years old in 2025.

What condition is Co.Road 321 over Morris Creek in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in February 2024.

How much traffic does Co.Road 321 over Morris Creek carry?

About 150 vehicles per day (2022 count), of which roughly 4% are trucks.

How long is Co.Road 321 over Morris Creek?

The structure is 102 ft (31.1 m) long with a longest span of 40 ft (12.2 m) and a deck 29 ft wide.

Who owns Co.Road 321 over Morris Creek?

It is owned by the County Highway Agency.