US Bridges

Old Dallas RD over Mazarn Creek Branch

Fair

Montgomery County, Arkansas · 4.98 M NW Garland CO Line · Structure no. 000000000015502

Built
1939
86 years old
Condition
Fair
inspected January 2025
Type
Slab
Concrete
Length
49 ft
2 main spans
Daily traffic
128
2018 count
Owner
County
County Highway Agency

About this bridge

Old Dallas RD over Mazarn Creek Branch is a concrete slab carrying Old Dallas RD over Mazarn Creek Branch in Montgomery County, Arkansas. It was built in 1939, so it is 86 years old, older than the Arkansas average of 45.1 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 128 vehicles a day, roughly 1% of them trucks, projected to reach 56 by 2007. The structure is 49 ft (14.9 m) long and 12 ft wide. If it were closed, the detour would be 24.9 mi (40 km).

Location

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CarriesOld Dallas RD
CrossesMazarn Creek Branch
Location4.98 M NW Garland CO Line
RouteCounty Highway 40
CountyMontgomery County
StateArkansas
Coordinates34.47639, -93.47389
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
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry2: Basically intolerable, requiring high priority of replacement
Waterway adequacy4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating44 US tons
Inventory rating26 US tons

Structure

Structure typeSlab
MaterialConcrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length49 ft (14.9 m)
Longest span26 ft (7.9 m)
Deck width12 ft (3.7 m)
Roadway width11 ft (3.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic128 (2018)
Projected traffic56 by 2007
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed24.9 mi (40 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$239,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Old Dallas RD over Mazarn Creek Branch built?

It was built in 1939, making it 86 years old in 2025.

What condition is Old Dallas RD over Mazarn Creek Branch 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 January 2025.

How much traffic does Old Dallas RD over Mazarn Creek Branch carry?

About 128 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Old Dallas RD over Mazarn Creek Branch?

The structure is 49 ft (14.9 m) long with a longest span of 26 ft (7.9 m) and a deck 12 ft wide.

Who owns Old Dallas RD over Mazarn Creek Branch?

It is owned by the County Highway Agency.