US Bridges

US 20 EB over T 19

Fair

Grundy County, Iowa · At Junction With SR T19 · Structure no. 000000000608560

Built
2003
22 years old
Condition
Fair
inspected August 2024
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
174 ft
3 main spans
Daily traffic
4,550
2022 count
Owner
State
State Highway Agency

About this bridge

US 20 EB over T 19 is a prestressed concrete stringer/multi-beam or girder carrying US 20 EB over T 19 in Grundy County, Iowa. It was built in 2003, so it is 22 years old, younger 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 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 4,550 vehicles a day, roughly 29% of them trucks, projected to reach 4,550 by 2044. The structure is 174 ft (53 m) long and 43 ft wide.

CarriesUS 20 EB
CrossesT 19
LocationAt Junction With SR T19
RouteU.S. Route 20
StateIowa
Coordinates42.46282, -92.92594
Functional classRural Principal Arterial - Other

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.
Superstructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Substructure8 Very GoodNo problems noted.
Last inspectionAugust 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation5: Somewhat better than minimum adequacy to tolerate being left in place as is
Deck geometry7: Better than present minimum criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.8 US tons
Inventory rating42.8 US tons

Structure

MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length174 ft (53 m)
Longest span95 ft (29 m)
Deck width43 ft (13 m)
Roadway width39 ft (12 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,550 (2022)
Projected traffic4,550 by 2044
Trucks29%
Lanes on structure2
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway
Detour if closed—
TollOn a free road
National Highway SystemYes

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 US 20 EB over T 19 built?

It was built in 2003, making it 22 years old in 2025.

What condition is US 20 EB over T 19 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 August 2024.

How much traffic does US 20 EB over T 19 carry?

About 4,550 vehicles per day (2022 count), of which roughly 29% are trucks.

How long is US 20 EB over T 19?

The structure is 174 ft (53 m) long with a longest span of 95 ft (29 m) and a deck 43 ft wide.

Who owns US 20 EB over T 19?

It is owned by the State Highway Agency.