US Bridges

Riley Road over Big Bogue Creek

Good

Montgomery County, Mississippi · Sec 24 T21N R 5E · Structure no. SA4900000000114

Built
1998
27 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete
Length
300 ft
6 main spans
Daily traffic
50
2024 count
Owner
County
County Highway Agency

About this bridge

Riley Road over Big Bogue Creek is a concrete slab carrying Riley Road over Big Bogue Creek in Montgomery County, Mississippi. It was built in 1998, so it is 27 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 2044. The structure is 300 ft (91.4 m) long and 30 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesRiley Road
CrossesBig Bogue Creek
LocationSec 24 T21N R 5E
RouteCounty Highway 45
Coordinates33.66926, -89.72398
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.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionMarch 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 geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating85 US tons
Inventory rating37.8 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length300 ft (91.4 m)
Longest span100 ft (30.5 m)
Deck width30 ft (9.1 m)
Roadway width27 ft (8.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic50 (2024)
Projected traffic75 by 2044
Trucks8%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$1.7 million (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Riley Road over Big Bogue Creek built?

It was built in 1998, making it 27 years old in 2025.

What condition is Riley Road over Big Bogue 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 2024.

How much traffic does Riley Road over Big Bogue Creek carry?

About 50 vehicles per day (2024 count), of which roughly 8% are trucks.

How long is Riley Road over Big Bogue Creek?

The structure is 300 ft (91.4 m) long with a longest span of 100 ft (30.5 m) and a deck 30 ft wide.

Who owns Riley Road over Big Bogue Creek?

It is owned by the County Highway Agency.