US Bridges

Eldora Rd.Ne over Drainage

Good

Black Hawk County, Iowa · 000000000 · Structure no. 000000000006111

Built
1986
39 years old
Condition
Good
inspected March 2024
Type
Slab
Concrete Continuous
Length
75 ft
3 main spans
Daily traffic
1,838
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Eldora Rd.Ne over Drainage is a concrete continuous slab carrying Eldora Rd.Ne over Drainage in Black Hawk County, Iowa. It was built in 1986, so it is 39 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 1,838 vehicles a day, projected to reach 1,838 by 2044. The structure is 75 ft (22.9 m) long and 33 ft wide. If it were closed, the detour would be 3.1 mi (5 km).

CarriesEldora Rd.Ne
CrossesDrainage
Location000000000
RouteCity Street 0
StateIowa
Coordinates42.41401, -92.44143
Functional classUrban Local

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 protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionMarch 2024
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourUnknown foundation; not evaluated for scour
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy7: Better than present minimum criteria
Approach roadway alignment7: Better than present minimum criteria
Operating rating58.5 US tons
Inventory rating34.3 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length75 ft (22.9 m)
Longest span29 ft (8.8 m)
Deck width33 ft (10.1 m)
Roadway width30 ft (9.1 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic1,838 (2022)
Projected traffic1,838 by 2044
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.1 mi (5 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCity or Municipal Highway Agency
Maintained byCity or Municipal Highway Agency
Historic statusPossibly eligible for the National Register; requires further investigation
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Eldora Rd.Ne over Drainage built?

It was built in 1986, making it 39 years old in 2025.

What condition is Eldora Rd.Ne over Drainage 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 March 2024.

How much traffic does Eldora Rd.Ne over Drainage carry?

About 1,838 vehicles per day (2022 count).

How long is Eldora Rd.Ne over Drainage?

The structure is 75 ft (22.9 m) long with a longest span of 29 ft (8.8 m) and a deck 33 ft wide.

Who owns Eldora Rd.Ne over Drainage?

It is owned by the City or Municipal Highway Agency.