US Bridges

Ernwood Road over Martin Creek

Good

Pike County, Mississippi · Sec 31 T 3N R 8E B · Structure no. SA570000000A126

Built
2023
2 years old
Condition
Good
inspected February 2023
Type
Channel Beam
Concrete
Length
111 ft
3 main spans
Daily traffic
1,300
2021 count
Owner
County
County Highway Agency

About this bridge

Ernwood Road over Martin Creek is a concrete channel beam carrying Ernwood Road over Martin Creek in Pike County, Mississippi. It was built in 2023, so it is 2 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 1,300 vehicles a day, roughly 8% of them trucks, projected to reach 525 by 2043. The structure is 111 ft (33.8 m) long and 28 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesErnwood Road
CrossesMartin Creek
LocationSec 31 T 3N R 8E B
RouteCounty Highway 47
Coordinates31.18192, -90.4345
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.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionFebruary 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating48.2 US tons
Inventory rating37.1 US tons

Structure

Structure typeChannel Beam
MaterialConcrete
DeckConcrete, precast panels
Main spans3
Design loadHL 93
Structure length111 ft (33.8 m)
Longest span40 ft (12.2 m)
Deck width28 ft (8.6 m)
Roadway width28 ft (8.6 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,300 (2021)
Projected traffic525 by 2043
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 proposedReplacement because of substandard load-carrying capacity or roadway geometry
Estimated improvement cost$717,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Ernwood Road over Martin Creek built?

It was built in 2023, making it 2 years old in 2025.

What condition is Ernwood Road over Martin 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 Ernwood Road over Martin Creek carry?

About 1,300 vehicles per day (2021 count), of which roughly 8% are trucks.

How long is Ernwood Road over Martin Creek?

The structure is 111 ft (33.8 m) long with a longest span of 40 ft (12.2 m) and a deck 28 ft wide.

Who owns Ernwood Road over Martin Creek?

It is owned by the County Highway Agency.