US Bridges

Madison CR 4605 Zg over White River

Fair

Madison County, Arkansas · 0.10 Mile S SH 16 · Structure no. 000000000020606

Built
1984
41 years old
Condition
Fair
inspected February 2025
Type
Stringer/Multi-beam or Girder
Steel
Length
38 ft
1 main span
Daily traffic
22
2018 count
Owner
County
County Highway Agency

About this bridge

Madison CR 4605 Zg over White River is a steel stringer/multi-beam or girder carrying Madison CR 4605 Zg over White River in Madison County, Arkansas. It was built in 1984, so it is 41 years old, younger 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 22 vehicles a day, roughly 1% of them trucks, projected to reach 26 by 2007. The structure is 38 ft (11.6 m) long and 14 ft wide. If it were closed, the detour would be 124.3 mi (200 km).

Location

Open in Google Maps
CarriesMadison CR 4605 Zg
CrossesWhite River
Location0.10 Mile S SH 16
RouteCounty Highway 4605
CountyMadison County
StateArkansas
Coordinates35.81711, -93.67593
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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionFebruary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy6: Equal to present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating41 US tons
Inventory rating25 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel
DeckConcrete, cast-in-place
Main spans1
Design loadUnknown
Structure length38 ft (11.6 m)
Longest span34 ft (10.4 m)
Deck width14 ft (4.2 m)
Roadway width14 ft (4.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic22 (2018)
Projected traffic26 by 2007
Trucks1%
Lanes on structure1
Traffic directionOne-lane bridge for two-way traffic
CarriesHighway
CrossesWaterway
Detour if closed124.3 mi (200 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Madison CR 4605 Zg over White River built?

It was built in 1984, making it 41 years old in 2025.

What condition is Madison CR 4605 Zg over White River 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 February 2025.

How much traffic does Madison CR 4605 Zg over White River carry?

About 22 vehicles per day (2018 count), of which roughly 1% are trucks.

How long is Madison CR 4605 Zg over White River?

The structure is 38 ft (11.6 m) long with a longest span of 34 ft (10.4 m) and a deck 14 ft wide.

Who owns Madison CR 4605 Zg over White River?

It is owned by the County Highway Agency.