US Bridges

FM D-5X over US 20

Fair

Delaware County, Iowa · At Jct. SR D5X · Structure no. 000000000602025

Built
1973
52 years old
Condition
Fair
inspected July 2023
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
287 ft
4 main spans
Daily traffic
3,398
2022 count
Owner
State
State Highway Agency

About this bridge

FM D-5X over US 20 is a steel continuous stringer/multi-beam or girder carrying FM D-5X over US 20 in Delaware County, Iowa. It was built in 1973, so it is 52 years old, older than the Iowa average of 45.5 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 3,398 vehicles a day, roughly 5% of them trucks, projected to reach 3,398 by 2043. The structure is 287 ft (87.5 m) long and 35 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

Location

Open in Google Maps
CarriesFM D-5X
CrossesUS 20
LocationAt Jct. SR D5X
RouteCounty Highway 0
CountyDelaware County
StateIowa
Coordinates42.47066, -91.44364
Functional classUrban Minor Arterial

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.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Last inspectionJuly 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry4: Meets minimum tolerable limits to be left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating62.7 US tons
Inventory rating37.6 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans4
Design loadHS 20
Structure length287 ft (87.5 m)
Longest span92 ft (28 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic3,398 (2022)
Projected traffic3,398 by 2043
Trucks5%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was FM D-5X over US 20 built?

It was built in 1973, making it 52 years old in 2025.

What condition is FM D-5X over US 20 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 July 2023.

How much traffic does FM D-5X over US 20 carry?

About 3,398 vehicles per day (2022 count), of which roughly 5% are trucks.

How long is FM D-5X over US 20?

The structure is 287 ft (87.5 m) long with a longest span of 92 ft (28 m) and a deck 35 ft wide.

Who owns FM D-5X over US 20?

It is owned by the State Highway Agency.