Leslie Karsten

Acquisitions Branch Chief Federal Highway Administration

Agency: Federal Highway Administration Department of Transportation
Email: leslie.karsten@dot.gov
Phone: Not on record
Latest SAM.gov record: Sep 25, 2026

Contact facts

Contract awards and IDVs: 443 439 awards, 4 IDVs, as contracting staff
Top vendors: Ch2M Hill, Inc. 77 awards and IDVs · $17.5M in award value

Atkinsrealis USA Inc. 69 awards and IDVs · $16.8M in award value
First SAM.gov record: Apr 19, 2019

Awards come from FPDS, which names the staff who created, approved or last changed an award without saying which.

Contract awards and IDVs

Award	Awarded	Obligated
TX flap UV CR203(1) fish hatchery road 6982AF25F00072N · HDR Engineering, Inc.	Jul 23, 2025	$30,000
CO ftnp meve 100(1) & 101(1) cliff palace & mesa top loop roads road reconstruction in mesa verde national park 6982AF21C000016 · Jita Contracting, Inc.	Feb 4, 2021	$1,774,650
FY26 overhead: quality assurance review the purpose for this task order is quality assurance review services. 6982AF26F00003N · Atkinsrealis USA Inc.	Nov 6, 2025	$100,000
OK FW SQH T501(1) rehab riverbank & sandtown woods TR riverbank rehabilitation 6982AF26C000013 · Yorkshire Industries LLC	Nov 10, 2025	$428,678
UT flap 73(2) LA SAL mountain loop road roadway rehabilitation and reconstruction 6982AF24C000009 · Kilgore Companies, LLC	Jan 30, 2024	$20,631,491
Quality assurance reviews on internal projects 6982AF23F00002N · HDR Engineering, Inc.	Nov 2, 2022	$200,000
UT flap SLA 10(1) mill creek canyon road construction contract 6982AF25C000018 · S & L Landscaping & Excavation Inc.	Feb 26, 2025	$23,869,732
CO flpp NPS special projects pilots and studies the purpose of this task order is to develop a visitation scenario… 6982AF25F00007N · HDR Engineering, Inc.	Nov 20, 2024	$233,068
CO NP romo 11(5) beaver meadows road: value methodology for concept level design 6982AF26F00096N · HDR Engineering, Inc.	Sep 2, 2026	$117,963
Architect-engineer project development and post-design services indefinite-delivery, indefinite-quantity contract IDV · 6982AF19D000008 · WSP USA Environment & Infrastructure Inc.	Aug 27, 2019	—
Architect and engineering project development and post-design services - indefinite-delivery, indefinite-quantity… IDV · 6982AF19D000007 · Atkinsrealis USA Inc.	Aug 15, 2019	—
NM ftbl 2004(2) wild revers road - 70% design to final design 6982AF22F00164N · Jacobs Engineering Group Inc.	Sep 12, 2022	$1,094,027
CO omad 300(69) minuteman missile access 6982AF24F00073N · Atkinsrealis USA Inc.	Aug 15, 2023	$42,310
NM flap SR35(1) grant county bridges geotech investigation - geotechnical drilling, lab testing and preparing… 6982AF24F00007N · HDR Engineering, Inc.	Nov 9, 2023	$432,055
HI STP SR11(2) ninole stream bridge and HI STP SR11(1) hilea stream bridge bridge construction 6982AF18C000020 · Hawaiian Dredging Construction Company, Inc.	Apr 9, 2018	$20,057,171
UT flap web 10(1) causey reservoir access 6982AF26C000012 · B H, Inc.	Jan 16, 2026	$11,128,099
WY flap she 26(1) red grade road, phase 1 - construction project 6982AF26C000021 · Steve Manning Construction Inc.	Apr 23, 2026	$9,441,749
CA ftnp seki 13(2) mineral king road roadway rehabilitation CN contract 6982AF25C000009 · Steve Manning Construction Inc.	Dec 23, 2024	$43,498,884
NM ftbl 2004(2) wild rivers road the purpose of this action is to award a construction contract 6982AF25C000025 · West Point Contractors, Inc.	May 21, 2025	$11,603,168
CA FW SAC 10(1) & 900(1) entrance road and visitor center parking: post design services 6982AF25F00027N · HDR Engineering, Inc.	Apr 17, 2025	$7,184
CA flap SR89(1) truckee river bridge construction claim consulting services per SOW 6982AF23F00099N · HDR Engineering, Inc.	Jun 6, 2023	$71,002
UT NP care 10(2) & 100(1) scenic drive & goosenecks road road construction and rehabilitation contract 6982AF24C000013 · Harward & Rees	Mar 25, 2024	$11,347,200
NV flap 500(2) red rock trail 6982AF21F000149 · Dj&A, P.C.	Sep 13, 2021	$1,400,383
SD NP badl 10(11) realign badlands loop at cedar pass - scoping 6982AF23F00124N · HDR Engineering, Inc.	Aug 21, 2023	$614,536
CA ER inyo 2023-4(1) whitney portal road 6982AF24F00063N · Steelhead Constructors JV	Jul 3, 2024	$7,588,766

Show 15 more

Latest 25 of 443 listed here. See the rest on GovTribe.

Top vendors

Rank	Vendor	Awards and IDVs	Award value
1	Ch2M Hill, Inc.	77	$17.5M
2	Atkinsrealis USA Inc.	69	$16.8M
3	HDR Engineering, Inc.	49	$14.9M
4	Jacobs Engineering Group Inc.	40	$7.97M
5	Dj&A, P.C.	40	$12.3M
6	WSP USA Environment & Infrastructure Inc.	26	$2.25M
7	Jacobs Engineering Group Inc.	21	$3.95M
8	Rocksol Consulting Group, Inc.	12	$4.03M
9	Steve Manning Construction Inc.	5	$109M
10	Steelhead Constructors JV	4	$19.6M

Award value adds up the base and exercised options recorded for the contract awards naming them. IDVs carry no value of their own.

Top NAICS codes

Rank	NAICS code	SAM.gov records
1	541330 Engineering Services	277
2	237310 Highway, Street, and Bridge Construction	80
3	541310 Architectural Services	76
4	238910 Site Preparation Contractors	5
5	541380 Testing Laboratories and Services	2
6	333316 Photographic and Photocopying Equipment Manufacturing	1
7	334515 Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals	1
8	488210 Support Activities for Rail Transportation	1

Top PSC codes

Rank	PSC code	SAM.gov records
1	C1LB Architect And Engineering- Construction: Highways, Roads, Streets, Bridges, And Railways	300
2	Y1LB Construction Of Highways, Roads, Streets, Bridges, And Railways	80
3	C211 Architect And Engineering- General: Landscaping, Interior Layout, And Designing	41
4	C213 Architect And Engineering- General: Inspection (Non-Construction)	11
5	3820 Mining, Rock Drilling, Earth Boring, And Related Equipment	3
6	B519 Special Studies/Analysis- Geotechnical	3
7	1550 Unmanned Aircraft	1
8	C1LZ Architect And Engineering- Construction: Parking Facilities	1
9	J074 Maint/Repair/Rebuild Of Equipment- Office Machines/Text Processing Sys/Visible Record Equipment	1
10	R425 Support- Professional: Engineering/Technical	1

Other records

Record	Kind
6982AF26B000003 IFB.pdf	Government file
6982AF26Q000007 RFQ .pdf	Government file
UT FLAP WEB 10(1) Causey Pre-Bid Showing.pptx	Government file

Quick answers

Who is Leslie Karsten?

Leslie Karsten is an Acquisitions Branch Chief at Federal Highway Administration (Department of Transportation). Contracting staff on 439 contract awards and 4 IDVs, from April 19, 2019 to September 25, 2026.

How do I contact Leslie Karsten?

FPDS lists Leslie Karsten's email leslie.karsten@dot.gov.

Which vendors has Leslie Karsten awarded contracts to?

The vendors on the most contract awards and IDVs naming Leslie Karsten are Ch2M Hill, Inc., Atkinsrealis USA Inc. and HDR Engineering, Inc.. Leslie Karsten's contract awards to Ch2M Hill, Inc. add up to $17.5M in base and exercised options.