US Bridges

SR 27 over Natchez Trace

Good

Hinds County, Mississippi · 5.5 MI N SR 18 · Structure no. 310002702511110

Built
1962
63 years old
Condition
Good
inspected June 2024
Type
Arch - Deck
Concrete
Length
74 ft
1 main span
Daily traffic
3,100
2023 count
Owner
State
State Highway Agency

About this bridge

SR 27 over Natchez Trace is a concrete arch - deck carrying SR 27 over Natchez Trace in Hinds County, Mississippi. It was built in 1962, so it is 63 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 3,100 vehicles a day, roughly 14% of them trucks, projected to reach 3,100 by 2043. The structure is 74 ft (22.6 m) long and 34 ft wide. If it were closed, the detour would be 34.8 mi (56 km).

CarriesSR 27
CrossesNatchez Trace
Location5.5 MI N SR 18
RouteState Highway 27
Coordinates32.18248, -90.63917
Functional classRural Minor Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Superstructure7 GoodSome minor problems.
Substructure8 Very GoodNo problems noted.
Last inspectionJune 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment8: Equal to present desirable criteria
Operating rating59.6 US tons
Inventory rating35.7 US tons

Structure

Structure typeArch - Deck
MaterialConcrete
DeckNot applicable
Main spans1
Design loadH 20
Structure length74 ft (22.6 m)
Longest span74 ft (22.6 m)
Deck width34 ft (10.4 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,100 (2023)
Projected traffic3,100 by 2043
Trucks14%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesHighway
Detour if closed34.8 mi (56 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState 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 SR 27 over Natchez Trace built?

It was built in 1962, making it 63 years old in 2025.

What condition is SR 27 over Natchez Trace 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 June 2024.

How much traffic does SR 27 over Natchez Trace carry?

About 3,100 vehicles per day (2023 count), of which roughly 14% are trucks.

How long is SR 27 over Natchez Trace?

The structure is 74 ft (22.6 m) long with a longest span of 74 ft (22.6 m) and a deck 34 ft wide.

Who owns SR 27 over Natchez Trace?

It is owned by the State Highway Agency.