US Bridges

E29 Summit RD over Creek

Good

Marshall County, Iowa · 084182902 · Structure no. 000000000243471

Built
2005
20 years old
Condition
Good
inspected November 2023
Type
Slab
Concrete Continuous
Length
78 ft
3 main spans
Daily traffic
717
2022 count
Owner
County
County Highway Agency

About this bridge

E29 Summit RD over Creek is a concrete continuous slab carrying E29 Summit RD over Creek in Marshall County, Iowa. It was built in 2005, so it is 20 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 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 717 vehicles a day, projected to reach 717 by 2043. The structure is 78 ft (23.8 m) long and 33 ft wide. If it were closed, the detour would be 8.1 mi (13 km).

CarriesE29 Summit RD
CrossesCreek
Location084182902
RouteCounty Highway 0
StateIowa
Coordinates42.06338, -92.98082
Functional classRural Major Collector

Condition and inspection

Good

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

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection7 GoodSome minor problems.
Last inspectionNovember 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating84.1 US tons
Inventory rating50.4 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length78 ft (23.8 m)
Longest span29 ft (8.8 m)
Deck width33 ft (10.1 m)
Roadway width31 ft (9.3 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic717 (2022)
Projected traffic717 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.1 mi (13 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$30,000 (2024 estimate)
NavigationNo navigation control on waterway

Frequently asked questions

When was E29 Summit RD over Creek built?

It was built in 2005, making it 20 years old in 2025.

What condition is E29 Summit RD over 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 November 2023.

How much traffic does E29 Summit RD over Creek carry?

About 717 vehicles per day (2022 count).

How long is E29 Summit RD over Creek?

The structure is 78 ft (23.8 m) long with a longest span of 29 ft (8.8 m) and a deck 33 ft wide.

Who owns E29 Summit RD over Creek?

It is owned by the County Highway Agency.