US Bridges

E-S Ramp B over High & Main ST

Fair

Des Moines County, Iowa · 0.4 Mi. W of Il St. Line · Structure no. 000000000604860

Built
1972
53 years old
Condition
Fair
inspected October 2024
Type
Girder and Floorbeam System
Steel Continuous
Length
397 ft
6 main spans
Daily traffic
2,750
2022 count
Owner
State
State Highway Agency

About this bridge

E-S Ramp B over High & Main ST is a steel continuous girder and floorbeam system carrying E-S Ramp B over High & Main ST in Des Moines County, Iowa. It was built in 1972, so it is 53 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 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 2,750 vehicles a day, roughly 9% of them trucks, projected to reach 2,750 by 2044. The structure is 397 ft (121 m) long and 26 ft wide.

Location

Open in Google Maps
CarriesE-S Ramp B
CrossesHigh & Main ST
Location0.4 Mi. W of Il St. Line
RouteU.S. Route 34
CountyDes Moines County
StateIowa
Coordinates40.81336, -91.10059
Functional classUrban Other Principal 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.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure5 FairAll primary structural elements are sound but may have minor section loss, cracking, spalling or scour.
Last inspectionOctober 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 geometry6: Equal to present minimum criteria
Approach roadway alignment4: Meets minimum tolerable limits to be left in place as is
Operating rating48.9 US tons
Inventory rating29.5 US tons

Structure

Structure typeGirder and Floorbeam System
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans6
Design loadHS 20
Structure length397 ft (121 m)
Longest span72 ft (21.9 m)
Deck width26 ft (8 m)
Roadway width23 ft (7 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,750 (2022)
Projected traffic2,750 by 2044
Trucks9%
Lanes on structure1
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 statusHistorical significance not determinable at this time
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was E-S Ramp B over High & Main ST built?

It was built in 1972, making it 53 years old in 2025.

What condition is E-S Ramp B over High & Main ST 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 October 2024.

How much traffic does E-S Ramp B over High & Main ST carry?

About 2,750 vehicles per day (2022 count), of which roughly 9% are trucks.

How long is E-S Ramp B over High & Main ST?

The structure is 397 ft (121 m) long with a longest span of 72 ft (21.9 m) and a deck 26 ft wide.

Who owns E-S Ramp B over High & Main ST?

It is owned by the State Highway Agency.