US Bridges

Smith CO.19/NORRIS over Branch of Lyon Creek

Good

Smith County, Mississippi · Sec 20 T10N R14W B · Structure no. SA6500000000123

Built
1987
38 years old
Condition
Good
inspected September 2023
Type
Culvert
Concrete
Length
23 ft
2 main spans
Daily traffic
200
2021 count
Owner
City
City or Municipal Highway Agency

About this bridge

Smith CO.19/NORRIS over Branch of Lyon Creek is a concrete culvert carrying Smith CO.19/NORRIS over Branch of Lyon Creek in Smith County, Mississippi. It was built in 1987, so it is 38 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 200 vehicles a day, roughly 10% of them trucks, projected to reach 300 by 2043. The structure is 23 ft (7 m) long. If it were closed, the detour would be 1.9 mi (3 km).

CarriesSmith CO.19/NORRIS
CrossesBranch of Lyon Creek
LocationSec 20 T10N R14W B
RouteCounty Highway 151
Coordinates31.82161, -89.42706
Functional classUrban Local

Condition and inspection

Good

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

ComponentRatingMeaning
Channel and channel protection4 PoorAdvanced section loss, deterioration, spalling or scour.
Culvert7 GoodSome minor problems.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating93.3 US tons
Inventory rating55.8 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans2
Design loadHS 20
Structure length23 ft (7 m)
Longest span10 ft (3 m)
Deck width0 ft (0 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic200 (2021)
Projected traffic300 by 2043
Trucks10%
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

OwnerCity or Municipal 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$550,000 (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Smith CO.19/NORRIS over Branch of Lyon Creek built?

It was built in 1987, making it 38 years old in 2025.

What condition is Smith CO.19/NORRIS over Branch of Lyon 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 September 2023.

How much traffic does Smith CO.19/NORRIS over Branch of Lyon Creek carry?

About 200 vehicles per day (2021 count), of which roughly 10% are trucks.

How long is Smith CO.19/NORRIS over Branch of Lyon Creek?

The structure is 23 ft (7 m) long with a longest span of 10 ft (3 m).

Who owns Smith CO.19/NORRIS over Branch of Lyon Creek?

It is owned by the City or Municipal Highway Agency and maintained by the County Highway Agency.