US Bridges

County Road 1121 over Unnamed Creek

Good

Prentiss County, Mississippi · Sec 11 T 4S R 7E B · Structure no. SA590000000A012

Built
2020
5 years old
Condition
Good
inspected March 2023
Type
Channel Beam
Concrete
Length
120 ft
3 main spans
Daily traffic
282
2023 count
Owner
County
County Highway Agency

About this bridge

County Road 1121 over Unnamed Creek is a concrete channel beam carrying County Road 1121 over Unnamed Creek in Prentiss County, Mississippi. It was built in 2020, so it is 5 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 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 282 vehicles a day, roughly 8% of them trucks, projected to reach 413 by 2040. The structure is 120 ft (36.6 m) long and 31 ft wide. If it were closed, the detour would be 5 mi (8 km).

Location

Open in Google Maps
CarriesCounty Road 1121
CrossesUnnamed Creek
LocationSec 11 T 4S R 7E B
RouteCounty Highway 341
CountyPrentiss County
StateMississippi
Coordinates34.74545, -88.52516
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
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating55.7 US tons
Inventory rating42.9 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length120 ft (36.6 m)
Longest span40 ft (12.2 m)
Deck width31 ft (9.3 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic282 (2023)
Projected traffic413 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed5 mi (8 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—
NavigationNot applicable (no waterway)

Frequently asked questions

When was County Road 1121 over Unnamed Creek built?

It was built in 2020, making it 5 years old in 2025.

What condition is County Road 1121 over Unnamed 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 March 2023.

How much traffic does County Road 1121 over Unnamed Creek carry?

About 282 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is County Road 1121 over Unnamed Creek?

The structure is 120 ft (36.6 m) long with a longest span of 40 ft (12.2 m) and a deck 31 ft wide.

Who owns County Road 1121 over Unnamed Creek?

It is owned by the County Highway Agency.