US Bridges

Ia 100 EB on Ramp over Morgan Creek

Good

Linn County, Iowa · IA100 EB & SR E48 Intchg · Structure no. 000000000700630

Built
2016
9 years old
Condition
Good
inspected September 2023
Type
Stringer/Multi-beam or Girder
Prestressed Concrete
Length
509 ft
4 main spans
Daily traffic
1,440
2022 count
Owner
State
State Highway Agency

About this bridge

Ia 100 EB on Ramp over Morgan Creek is a prestressed concrete stringer/multi-beam or girder carrying Ia 100 EB on Ramp over Morgan Creek in Linn County, Iowa. It was built in 2016, so it is 9 years old, younger than the Iowa average of 45.5 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,440 vehicles a day, roughly 3% of them trucks, projected to reach 1,440 by 2043. The structure is 509 ft (155.2 m) long and 29 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

Open in Google Maps
CarriesIa 100 EB on Ramp
CrossesMorgan Creek
LocationIA100 EB & SR E48 Intchg
RouteState Highway 100
CountyLinn County
StateIowa
Coordinates41.97952, -91.77595
Functional classUrban Other Principal Arterial

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck8 Very GoodNo problems noted.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Channel and channel protection8 Very GoodNo problems noted.
Last inspectionSeptember 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation8: Equal to present desirable criteria
Deck geometry8: Equal to present desirable criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating46.4 US tons
Inventory rating35.7 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans4
Design loadHL 93
Structure length509 ft (155.2 m)
Longest span127 ft (38.7 m)
Deck width29 ft (8.9 m)
Roadway width26 ft (7.9 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,440 (2022)
Projected traffic1,440 by 2043
Trucks3%
Lanes on structure1
Traffic directionOne-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.2 mi (2 km)
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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Ia 100 EB on Ramp over Morgan Creek built?

It was built in 2016, making it 9 years old in 2025.

What condition is Ia 100 EB on Ramp over Morgan Creek in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2023.

How much traffic does Ia 100 EB on Ramp over Morgan Creek carry?

About 1,440 vehicles per day (2022 count), of which roughly 3% are trucks.

How long is Ia 100 EB on Ramp over Morgan Creek?

The structure is 509 ft (155.2 m) long with a longest span of 127 ft (38.7 m) and a deck 29 ft wide.

Who owns Ia 100 EB on Ramp over Morgan Creek?

It is owned by the State Highway Agency.