US Bridges

Mulligan Road over Limestone Creek

Good

Simpson County, Mississippi · Sec 33 T 2N R 2E · Structure no. SA6400000000062

Built
2003
22 years old
Condition
Good
inspected February 2023
Type
Channel Beam
Concrete
Length
186 ft
6 main spans
Daily traffic
40
2020 count
Owner
County
County Highway Agency

About this bridge

Mulligan Road over Limestone Creek is a concrete channel beam carrying Mulligan Road over Limestone Creek in Simpson County, Mississippi. It was built in 2003, so it is 22 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 40 vehicles a day, roughly 8% of them trucks, projected to reach 60 by 2040. The structure is 186 ft (56.7 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesMulligan Road
CrossesLimestone Creek
LocationSec 33 T 2N R 2E
RouteCounty Highway 255
Coordinates31.97598, -90.10468
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.
Superstructure8 Very GoodNo problems noted.
Substructure7 GoodSome minor problems.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionFebruary 2023
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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment6: Equal to present minimum criteria
Operating rating83.2 US tons
Inventory rating50 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans6
Design loadHS 20
Structure length186 ft (56.7 m)
Longest span31 ft (9.4 m)
Deck width28 ft (8.5 m)
Roadway width27 ft (8.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic40 (2020)
Projected traffic60 by 2040
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 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 Mulligan Road over Limestone Creek built?

It was built in 2003, making it 22 years old in 2025.

What condition is Mulligan Road over Limestone 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 February 2023.

How much traffic does Mulligan Road over Limestone Creek carry?

About 40 vehicles per day (2020 count), of which roughly 8% are trucks.

How long is Mulligan Road over Limestone Creek?

The structure is 186 ft (56.7 m) long with a longest span of 31 ft (9.4 m) and a deck 28 ft wide.

Who owns Mulligan Road over Limestone Creek?

It is owned by the County Highway Agency.