US Bridges

Lafayette RD over Elk Run Creek

Good

Black Hawk County, Iowa · 089123307 · Structure no. 000000000004516

Built
2005
20 years old
Condition
Good
inspected April 2024
Type
Slab
Concrete Continuous
Length
120 ft
3 main spans
Daily traffic
2,534
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Lafayette RD over Elk Run Creek is a concrete continuous slab carrying Lafayette RD over Elk Run Creek in Black Hawk 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 2,534 vehicles a day, projected to reach 2,534 by 2044. The structure is 120 ft (36.6 m) long and 58 ft wide. If it were closed, the detour would be 1.9 mi (3 km).

CarriesLafayette RD
CrossesElk Run Creek
Location089123307
RouteCity Street 0
StateIowa
Coordinates42.46943, -92.26252
Functional classUrban Minor Arterial

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 protection8 Very GoodNo problems noted.
Last inspectionApril 2024
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation7: Better than present minimum criteria
Deck geometry6: Equal to present minimum criteria
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating91.5 US tons
Inventory rating54.8 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length120 ft (36.6 m)
Longest span47 ft (14.3 m)
Deck width58 ft (17.7 m)
Roadway width40 ft (12.2 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic2,534 (2022)
Projected traffic2,534 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed1.9 mi (3 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedOther structural work, including hydraulic replacements
Estimated improvement cost$17,000
NavigationNo navigation control on waterway

Frequently asked questions

When was Lafayette RD over Elk Run Creek built?

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

What condition is Lafayette RD over Elk Run 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 April 2024.

How much traffic does Lafayette RD over Elk Run Creek carry?

About 2,534 vehicles per day (2022 count).

How long is Lafayette RD over Elk Run Creek?

The structure is 120 ft (36.6 m) long with a longest span of 47 ft (14.3 m) and a deck 58 ft wide.

Who owns Lafayette RD over Elk Run Creek?

It is owned by the City or Municipal Highway Agency.