US Bridges

Little Mill RD over Stream

Fair

Allen Parish, Louisiana · 0.6 Miles S of US 190 · Structure no. 070230297925431

Built
1997
28 years old
Condition
Fair
inspected October 2023
Type
Culvert
Concrete
Length
40 ft
4 main spans
Daily traffic
1,071
2019 count
Owner
County
County Highway Agency

About this bridge

Little Mill RD over Stream is a concrete culvert carrying Little Mill RD over Stream in Allen Parish, Louisiana. It was built in 1997, so it is 28 years old, younger than the Louisiana average of 43 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 5 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 1,071 vehicles a day, projected to reach 1,178 by 2039. The structure is 40 ft (12.2 m) long and 41 ft wide. If it were closed, the detour would be 6.2 mi (10 km).

Location

Open in Google Maps
CarriesLittle Mill RD
CrossesStream
Location0.6 Miles S of US 190
RouteCounty Highway 0
CountyAllen Parish
StateLouisiana
Coordinates30.49569, -92.90671
Functional classRural Local

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Culvert5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment7: Better than present minimum criteria
Operating rating44 US tons
Inventory rating34 US tons

Structure

Structure typeCulvert
MaterialConcrete
DeckNot applicable
Main spans4
Design loadHS 20
Structure length40 ft (12.2 m)
Longest span9 ft (2.7 m)
Deck width41 ft (12.5 m)
Roadway width0 ft (0 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,071 (2019)
Projected traffic1,178 by 2039
Trucks—
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed6.2 mi (10 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 Little Mill RD over Stream built?

It was built in 1997, making it 28 years old in 2025.

What condition is Little Mill RD over Stream in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in October 2023.

How much traffic does Little Mill RD over Stream carry?

About 1,071 vehicles per day (2019 count).

How long is Little Mill RD over Stream?

The structure is 40 ft (12.2 m) long with a longest span of 9 ft (2.7 m) and a deck 41 ft wide.

Who owns Little Mill RD over Stream?

It is owned by the County Highway Agency.