US Bridges

Briney ST over Coal Creek

Good

Keokuk County, Iowa · 076130903 · Structure no. 000000000012681

Built
2004
21 years old
Condition
Good
inspected March 2023
Type
Slab
Concrete Continuous
Length
116 ft
3 main spans
Daily traffic
168
2022 count
Owner
City
City or Municipal Highway Agency

About this bridge

Briney ST over Coal Creek is a concrete continuous slab carrying Briney ST over Coal Creek in Keokuk County, Iowa. It was built in 2004, so it is 21 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 168 vehicles a day, projected to reach 168 by 2043. The structure is 116 ft (35.4 m) long and 27 ft wide. If it were closed, the detour would be 3.7 mi (6 km).

CarriesBriney ST
CrossesCoal Creek
Location076130903
RouteCity Street 0
StateIowa
Coordinates41.40151, -92.36
Functional classRural Local

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 protection7 GoodSome minor problems.
Last inspectionMarch 2023
Inspection intervalevery 48 months
Operating statusOpen, no restriction
ScourFoundations stable; scour within limits of footing or piles
Structural evaluation8: Equal to present desirable 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 alignment8: Equal to present desirable criteria
Operating rating91.8 US tons
Inventory rating54.9 US tons

Structure

Structure typeSlab
MaterialConcrete Continuous
DeckConcrete, cast-in-place
Main spans3
Design loadHS 20
Structure length116 ft (35.4 m)
Longest span44 ft (13.4 m)
Deck width27 ft (8.3 m)
Roadway width25 ft (7.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic168 (2022)
Projected traffic168 by 2043
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed3.7 mi (6 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—
NavigationNo navigation control on waterway

Frequently asked questions

When was Briney ST over Coal Creek built?

It was built in 2004, making it 21 years old in 2025.

What condition is Briney ST over Coal 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 March 2023.

How much traffic does Briney ST over Coal Creek carry?

About 168 vehicles per day (2022 count).

How long is Briney ST over Coal Creek?

The structure is 116 ft (35.4 m) long with a longest span of 44 ft (13.4 m) and a deck 27 ft wide.

Who owns Briney ST over Coal Creek?

It is owned by the City or Municipal Highway Agency.