US Bridges

Arkansas HWY 187 over Beaver Dam Spillway

Fair

Carroll County, Arkansas · 6 MI NW of Eureka Springs · Structure no. AHTD000000M3472

Built
1965
60 years old
Condition
Fair
inspected June 2023
Type
Girder and Floorbeam System
Steel
Length
336 ft
7 main spans
Daily traffic
1,500
2019 count
Owner
Federal
Corps of Engineers (Civil)

About this bridge

Arkansas HWY 187 over Beaver Dam Spillway is a steel girder and floorbeam system carrying Arkansas HWY 187 over Beaver Dam Spillway in Carroll County, Arkansas. It was built in 1965, so it is 60 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 6 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 1,500 vehicles a day, roughly 10% of them trucks, projected to reach 1,800 by 2039. The structure is 336 ft (102.4 m) long and 32 ft wide. If it were closed, the detour would be 14.3 mi (23 km).

Location

Open in Google Maps
CarriesArkansas HWY 187
CrossesBeaver Dam Spillway
Location6 MI NW of Eureka Springs
RouteState Highway 187
CountyCarroll County
StateArkansas
Coordinates36.42139, -93.84778
Functional classRural Major Collector

Condition and inspection

Fair

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

ComponentRatingMeaning
Deck6 SatisfactoryStructural elements show some minor deterioration.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry3: Basically intolerable, requiring high priority of corrective action
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment3: Basically intolerable, requiring high priority of corrective action
Operating rating71.1 US tons
Inventory rating54.7 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel
DeckConcrete, cast-in-place
Main spans7
Design loadHS 20 + Mod
Structure length336 ft (102.4 m)
Longest span48 ft (14.6 m)
Deck width32 ft (9.7 m)
Roadway width22 ft (6.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,500 (2019)
Projected traffic1,800 by 2039
Trucks10%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesRelief for waterway
Detour if closed14.3 mi (23 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCorps of Engineers (Civil)
Maintained byCorps of Engineers (Civil)
Historic statusNot eligible for the National Register of Historic Places
Work proposedWidening with deck rehabilitation or replacement
Estimated improvement cost$1.3 million (2023 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was Arkansas HWY 187 over Beaver Dam Spillway built?

It was built in 1965, making it 60 years old in 2025.

What condition is Arkansas HWY 187 over Beaver Dam Spillway 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 June 2023.

How much traffic does Arkansas HWY 187 over Beaver Dam Spillway carry?

About 1,500 vehicles per day (2019 count), of which roughly 10% are trucks.

How long is Arkansas HWY 187 over Beaver Dam Spillway?

The structure is 336 ft (102.4 m) long with a longest span of 48 ft (14.6 m) and a deck 32 ft wide.

Who owns Arkansas HWY 187 over Beaver Dam Spillway?

It is owned by the Corps of Engineers (Civil).