US Bridges

CR 346 over Mississippi Central RR

Good

Alcorn County, Mississippi · Sec 19 T 3S R 9E · Structure no. SA020000000A140

Built
2015
10 years old
Condition
Good
inspected March 2023
Type
Channel Beam
Concrete
Length
120 ft
3 main spans
Daily traffic
50
2015 count
Owner
County
County Highway Agency

About this bridge

CR 346 over Mississippi Central RR is a concrete channel beam carrying CR 346 over Mississippi Central RR in Alcorn County, Mississippi. It was built in 2015, so it is 10 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 50 vehicles a day, roughly 8% of them trucks, projected to reach 75 by 2035. The structure is 120 ft (36.6 m) long and 31 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

Location

Open in Google Maps
CarriesCR 346
CrossesMississippi Central RR
LocationSec 19 T 3S R 9E
RouteCounty Highway 0
CountyAlcorn County
StateMississippi
Coordinates34.81349, -88.39074
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Approach roadway alignment5: Somewhat better than minimum adequacy to tolerate being left in place as is
Operating rating51.8 US tons
Inventory rating40 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 traffic50 (2015)
Projected traffic75 by 2035
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRailroad
Detour if closed3.1 mi (5 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 CR 346 over Mississippi Central RR built?

It was built in 2015, making it 10 years old in 2025.

What condition is CR 346 over Mississippi Central RR 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 CR 346 over Mississippi Central RR carry?

About 50 vehicles per day (2015 count), of which roughly 8% are trucks.

How long is CR 346 over Mississippi Central RR?

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 CR 346 over Mississippi Central RR?

It is owned by the County Highway Agency.